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97147948 = 22191127157
BaseRepresentation
bin1011100101001…
…01110000101100
320202210121221011
411302211300230
5144332213243
613350115004
72256513112
oct562456054
9222717834
1097147948
114a923767
122864ba64
13171855c1
14cc8bab2
1587de89d
hex5ca5c2c

97147948 has 12 divisors (see below), whose sum is σ = 170900352. Its totient is φ = 48319280.

The previous prime is 97147873. The next prime is 97147997. The reversal of 97147948 is 84974179.

It is a super-2 number, since 2×971479482 = 18875447601221408, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 62815 + ... + 64342.

It is an arithmetic number, because the mean of its divisors is an integer number (14241696).

Almost surely, 297147948 is an apocalyptic number.

It is an amenable number.

97147948 is a deficient number, since it is larger than the sum of its proper divisors (73752404).

97147948 is a wasteful number, since it uses less digits than its factorization.

97147948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127352 (or 127350 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 97147948 is about 9856.3658617160. The cubic root of 97147948 is about 459.7035708335.

The spelling of 97147948 in words is "ninety-seven million, one hundred forty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 191 382 764 127157 254314 508628 24286987 48573974 97147948