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397031124 = 223721739719
BaseRepresentation
bin10111101010100…
…011011011010100
31000200002021022110
4113222203123110
51303114443444
6103221431020
712560465100
oct2752433324
91020067273
10397031124
111941283a6
12b0b6b470
1364342179
143aa30900
1524cc8cb9
hex17aa36d4

397031124 has 72 divisors (see below), whose sum is σ = 1141076160. Its totient is φ = 106761984.

The previous prime is 397031111. The next prime is 397031147. The reversal of 397031124 is 421130793.

It is a junction number, because it is equal to n+sod(n) for n = 397031091 and 397031100.

It is a congruent number.

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, 9864 + ... + 29855.

It is an arithmetic number, because the mean of its divisors is an integer number (15848280).

Almost surely, 2397031124 is an apocalyptic number.

397031124 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

397031124 is an abundant number, since it is smaller than the sum of its proper divisors (744045036).

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

397031124 is a wasteful number, since it uses less digits than its factorization.

397031124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39757 (or 39748 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 397031124 is about 19925.6398642553. The cubic root of 397031124 is about 734.9788656055.

The spelling of 397031124 in words is "three hundred ninety-seven million, thirty-one thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 49 51 68 84 98 102 119 147 196 204 238 294 357 476 588 714 833 1428 1666 2499 3332 4998 9996 39719 79438 119157 158876 238314 278033 476628 556066 675223 834099 1112132 1350446 1668198 1946231 2025669 2700892 3336396 3892462 4051338 4726561 5838693 7784924 8102676 9453122 11677386 14179683 18906244 23354772 28359366 33085927 56718732 66171854 99257781 132343708 198515562 397031124