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397124160 = 2635499829
BaseRepresentation
bin10111101010111…
…010001001000000
31000200020222221020
4113222322021000
51303130433120
6103223425440
712561333246
oct2752721100
91020228836
10397124160
11194191294
12b0bb5280
1364375614
143aa56796
1524ce6640
hex17aba240

397124160 has 112 divisors (see below), whose sum is σ = 1264920000. Its totient is φ = 105560064.

The previous prime is 397124137. The next prime is 397124171. The reversal of 397124160 is 61421793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478626 + ... + 479454.

Almost surely, 2397124160 is an apocalyptic number.

397124160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397124160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632460000).

397124160 is an abundant number, since it is smaller than the sum of its proper divisors (867795840).

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

397124160 is a wasteful number, since it uses less digits than its factorization.

397124160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 397124160 is about 19927.9743074905. The cubic root of 397124160 is about 735.0362701339.

The spelling of 397124160 in words is "three hundred ninety-seven million, one hundred twenty-four thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 499 829 960 998 1497 1658 1996 2487 2495 2994 3316 3992 4145 4974 4990 5988 6632 7485 7984 8290 9948 9980 11976 12435 13264 14970 15968 16580 19896 19960 23952 24870 26528 29940 31936 33160 39792 39920 47904 49740 53056 59880 66320 79584 79840 95808 99480 119760 132640 159168 159680 198960 239520 265280 397920 413671 479040 795840 827342 1241013 1654684 2068355 2482026 3309368 4136710 4964052 6205065 6618736 8273420 9928104 12410130 13237472 16546840 19856208 24820260 26474944 33093680 39712416 49640520 66187360 79424832 99281040 132374720 198562080 397124160