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129797352 = 23321999059
BaseRepresentation
bin1111011110010…
…00110011101000
3100001020101111100
413233020303220
5231212003402
620514001400
73134154636
oct757106350
9301211440
10129797352
11672a3743
1237576260
1320b77489
141334a356
15b5dd71c
hex7bc8ce8

129797352 has 48 divisors (see below), whose sum is σ = 353340000. Its totient is φ = 43043616.

The previous prime is 129797351. The next prime is 129797387. The reversal of 129797352 is 253797921.

129797352 is a `hidden beast` number, since 1 + 297 + 9 + 7 + 352 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 129797298 and 129797307.

It is not an unprimeable number, because it can be changed into a prime (129797351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9799 + ... + 18857.

It is an arithmetic number, because the mean of its divisors is an integer number (7361250).

Almost surely, 2129797352 is an apocalyptic number.

129797352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129797352 is an abundant number, since it is smaller than the sum of its proper divisors (223542648).

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

129797352 is a wasteful number, since it uses less digits than its factorization.

129797352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270 (or 9263 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 129797352 is about 11392.8640823982. The cubic root of 129797352 is about 506.3163410088.

The spelling of 129797352 in words is "one hundred twenty-nine million, seven hundred ninety-seven thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 199 398 597 796 1194 1592 1791 2388 3582 4776 7164 9059 14328 18118 27177 36236 54354 72472 81531 108708 163062 217416 326124 652248 1802741 3605482 5408223 7210964 10816446 14421928 16224669 21632892 32449338 43265784 64898676 129797352