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385651152 = 24334991789
BaseRepresentation
bin10110111111001…
…001000111010000
3222212200002221000
4112333021013100
51242211314102
6102133502000
712361660245
oct2677110720
9885602830
10385651152
11188765467
12a91a1900
1361b89463
143930b5cc
1523ccc01c
hex16fc91d0

385651152 has 80 divisors (see below), whose sum is σ = 1109800000. Its totient is φ = 128221056.

The previous prime is 385651139. The next prime is 385651159. The reversal of 385651152 is 251156583.

It is a happy number.

385651152 is a `hidden beast` number, since 38 + 565 + 11 + 52 = 666.

It is a super-2 number, since 2×3856511522 = 297453622077854208, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385651159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214674 + ... + 216462.

It is an arithmetic number, because the mean of its divisors is an integer number (13872500).

Almost surely, 2385651152 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 385651152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554900000).

385651152 is an abundant number, since it is smaller than the sum of its proper divisors (724148848).

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

385651152 is a wasteful number, since it uses less digits than its factorization.

385651152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305 (or 2293 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 385651152 is about 19638.0027497707. The cubic root of 385651152 is about 727.8885330283. Note that the first 3 decimals are identical.

The spelling of 385651152 in words is "three hundred eighty-five million, six hundred fifty-one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 499 998 1497 1789 1996 2994 3578 3992 4491 5367 5988 7156 7984 8982 10734 11976 13473 14312 16101 17964 21468 23952 26946 28624 32202 35928 42936 48303 53892 64404 71856 85872 96606 107784 128808 193212 215568 257616 386424 772848 892711 1785422 2678133 3570844 5356266 7141688 8034399 10712532 14283376 16068798 21425064 24103197 32137596 42850128 48206394 64275192 96412788 128550384 192825576 385651152