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397495160832 = 2123711617197
BaseRepresentation
bin1011100100011001000…
…11101101000000000000
31102000000010021100121210
411302030203231000000
523003032230121312
6502335020450120
740501205055630
oct5621443550000
91360003240553
10397495160832
11143638723690
12650543a9940
132b6397063a3
141534b6526c0
15a516a63e3c
hex5c8c8ed000

397495160832 has 832 divisors, whose sum is σ = 1375999930368. Its totient is φ = 99090432000.

The previous prime is 397495160819. The next prime is 397495160837. The reversal of 397495160832 is 238061594793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397495160837) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4097888208 + ... + 4097888304.

It is a 1-persistent number, because it is pandigital, but 2⋅397495160832 = 794990321664 is not.

Almost surely, 2397495160832 is an apocalyptic number.

397495160832 is a gapful number since it is divisible by the number (32) 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 397495160832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687999965184).

397495160832 is an abundant number, since it is smaller than the sum of its proper divisors (978504769536).

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

397495160832 is a wasteful number, since it uses less digits than its factorization.

397495160832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 397495160832 in words is "three hundred ninety-seven billion, four hundred ninety-five million, one hundred sixty thousand, eight hundred thirty-two".