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105007381380 = 223251153034031
BaseRepresentation
bin110000111001011101…
…1010111101110000100
3101001001010220200011100
41201302323113232010
53210023342201010
6120123440340100
710405116005016
oct1416273275604
9331033820140
10105007381380
1140595a24920
1218426914630
139b96053cc5
1451220c41b6
152ae8b4d2c0
hex1872ed7b84

105007381380 has 72 divisors (see below), whose sum is σ = 347478977664. Its totient is φ = 25456334400.

The previous prime is 105007381319. The next prime is 105007381387. The reversal of 105007381380 is 83183700501.

105007381380 is a `hidden beast` number, since 1 + 0 + 500 + 73 + 8 + 1 + 3 + 80 = 666.

It is a super-2 number, since 2×1050073813802 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (105007381387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26515036 + ... + 26518995.

It is an arithmetic number, because the mean of its divisors is an integer number (4826096912).

Almost surely, 2105007381380 is an apocalyptic number.

105007381380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105007381380 is an abundant number, since it is smaller than the sum of its proper divisors (242471596284).

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

105007381380 is a wasteful number, since it uses less digits than its factorization.

105007381380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53034057 (or 53034052 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 105007381380 in words is "one hundred five billion, seven million, three hundred eighty-one thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 53034031 106068062 159102093 212136124 265170155 318204186 477306279 530340310 583374341 636408372 795510465 954612558 1060680620 1166748682 1591020930 1750123023 1909225116 2333497364 2386531395 2916871705 3182041860 3500246046 4773062790 5250369069 5833743410 7000492092 8750615115 9546125580 10500738138 11667486820 17501230230 21001476276 26251845345 35002460460 52503690690 105007381380