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8130186144 = 253271974099
BaseRepresentation
bin1111001001001100…
…01100101110100000
3202222121101020201100
413210212030232200
5113122311424034
63422430034400
7405321304413
oct74446145640
922877336640
108130186144
1134a2307203
1216aa948a00
139c74c5542
14571ab5b7a
15328b64099
hex1e498cba0

8130186144 has 144 divisors (see below), whose sum is σ = 23693342400. Its totient is φ = 2643701760.

The previous prime is 8130186133. The next prime is 8130186151. The reversal of 8130186144 is 4416810318.

It is a happy number.

8130186144 is a `hidden beast` number, since 8 + 1 + 30 + 1 + 8 + 614 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8130186099 and 8130186108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1981407 + ... + 1985505.

It is an arithmetic number, because the mean of its divisors is an integer number (164537100).

Almost surely, 28130186144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8130186144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11846671200).

8130186144 is an abundant number, since it is smaller than the sum of its proper divisors (15563156256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8130186144 is a wasteful number, since it uses less digits than its factorization.

8130186144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283 (or 4272 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 8130186144 is about 90167.5448484653. The cubic root of 8130186144 is about 2010.7905229408.

The spelling of 8130186144 in words is "eight billion, one hundred thirty million, one hundred eighty-six thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 71 72 96 97 142 144 194 213 284 288 291 388 426 568 582 639 776 852 873 1136 1164 1278 1552 1704 1746 2272 2328 2556 3104 3408 3492 4099 4656 5112 6816 6887 6984 8198 9312 10224 12297 13774 13968 16396 20448 20661 24594 27548 27936 32792 36891 41322 49188 55096 61983 65584 73782 82644 98376 110192 123966 131168 147564 165288 196752 220384 247932 291029 295128 330576 393504 397603 495864 582058 590256 661152 795206 873087 991728 1164116 1180512 1192809 1590412 1746174 1983456 2328232 2385618 2619261 3180824 3492348 3578427 4656464 4771236 5238522 6361648 6984696 7156854 9312928 9542472 10477044 12723296 13969392 14313708 19084944 20954088 27938784 28229813 28627416 38169888 41908176 56459626 57254832 83816352 84689439 112919252 114509664 169378878 225838504 254068317 338757756 451677008 508136634 677515512 903354016 1016273268 1355031024 2032546536 2710062048 4065093072 8130186144