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97028147897 = 263774147659
BaseRepresentation
bin101101001011101010…
…1000000101010111001
3100021110001120121120022
41122113111000222321
53042203201213042
6112324001540225
710003306435442
oct1322725005271
9307401517508
1097028147897
113817095068a
121697a644675
1391c3c02185
1449a64a42c9
1527cd3a5cd2
hex1697540ab9

97028147897 has 8 divisors (see below), whose sum is σ = 97411702080. Its totient is φ = 96644705040.

The previous prime is 97028147891. The next prime is 97028147911. The reversal of 97028147897 is 79874182079.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97028147897 - 218 = 97027885753 is a prime.

It is a super-2 number, since 2×970281478972 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97028147891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012054 + ... + 2059712.

It is an arithmetic number, because the mean of its divisors is an integer number (12176462760).

Almost surely, 297028147897 is an apocalyptic number.

It is an amenable number.

97028147897 is a deficient number, since it is larger than the sum of its proper divisors (383554183).

97028147897 is a wasteful number, since it uses less digits than its factorization.

97028147897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55663.

The product of its (nonzero) digits is 14224896, while the sum is 62.

The spelling of 97028147897 in words is "ninety-seven billion, twenty-eight million, one hundred forty-seven thousand, eight hundred ninety-seven".

Divisors: 1 263 7741 47659 2035883 12534317 368928319 97028147897