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401131032 = 23379832549
BaseRepresentation
bin10111111010001…
…100011000011000
31000221210120022220
4113322030120120
51310142143112
6103445344040
712640362141
oct2772143030
91027716286
10401131032
11196478755
12b2408020
1365149353
143b3baac8
152533898c
hex17e8c618

401131032 has 64 divisors (see below), whose sum is σ = 1028160000. Its totient is φ = 130376064.

The previous prime is 401131001. The next prime is 401131057. The reversal of 401131032 is 230131104.

It is a super-2 number, since 2×4011310322 = 321812209666770048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156094 + ... + 158642.

It is an arithmetic number, because the mean of its divisors is an integer number (16065000).

Almost surely, 2401131032 is an apocalyptic number.

It is an amenable number.

401131032 is an abundant number, since it is smaller than the sum of its proper divisors (627028968).

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

401131032 is a wasteful number, since it uses less digits than its factorization.

401131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 401131032 is about 20028.2558401874. The cubic root of 401131032 is about 737.5001057933.

Adding to 401131032 its product of nonzero digits (72), we get a palindrome (401131104).

Adding to 401131032 its reverse (230131104), we get a palindrome (631262136).

The spelling of 401131032 in words is "four hundred one million, one hundred thirty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 79 83 158 166 237 249 316 332 474 498 632 664 948 996 1896 1992 2549 5098 6557 7647 10196 13114 15294 19671 20392 26228 30588 39342 52456 61176 78684 157368 201371 211567 402742 423134 604113 634701 805484 846268 1208226 1269402 1610968 1692536 2416452 2538804 4832904 5077608 16713793 33427586 50141379 66855172 100282758 133710344 200565516 401131032