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97440668 = 221321761139
BaseRepresentation
bin1011100111011…
…01001110011100
320210100111110122
411303231032130
5144421100133
613400254112
72262142403
oct563551634
9223314418
1097440668
1150003686
1228771338
1317258900
14cd2663a
15884b498
hex5ced39c

97440668 has 72 divisors (see below), whose sum is σ = 200143440. Its totient is φ = 41333760.

The previous prime is 97440649. The next prime is 97440697. The reversal of 97440668 is 86604479.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700943 + ... + 701081.

It is an arithmetic number, because the mean of its divisors is an integer number (2779770).

Almost surely, 297440668 is an apocalyptic number.

It is an amenable number.

97440668 is an abundant number, since it is smaller than the sum of its proper divisors (102702772).

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

97440668 is a wasteful number, since it uses less digits than its factorization.

97440668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 97440668 is about 9871.2039792520. The cubic root of 97440668 is about 460.1648243619.

The spelling of 97440668 in words is "ninety-seven million, four hundred forty thousand, six hundred sixty-eight".

Divisors: 1 2 4 13 17 26 34 52 61 68 122 139 169 221 244 278 338 442 556 676 793 884 1037 1586 1807 2074 2363 2873 3172 3614 4148 4726 5746 7228 8479 9452 10309 11492 13481 16958 20618 23491 26962 30719 33916 41236 46982 53924 61438 93964 110227 122876 144143 175253 220454 288286 350506 399347 440908 576572 701012 798694 1432951 1597388 1873859 2865902 3747718 5731804 7495436 24360167 48720334 97440668