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688868030092 = 221141201379993
BaseRepresentation
bin10100000011000111011…
…10111111011010001100
32102212002101201201211011
422001203232333122030
542241300203430332
61244243412335004
7100524535433524
oct12014356773214
92385071651734
10688868030092
11246169053970
12b1610614464
134cc630b72b8
14254acac0684
1512dbbb4ae47
hexa063bbf68c

688868030092 has 24 divisors (see below), whose sum is σ = 1315147074192. Its totient is φ = 313113408000.

The previous prime is 688868030083. The next prime is 688868030119. The reversal of 688868030092 is 290030868886.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622848 + ... + 2002840.

It is an arithmetic number, because the mean of its divisors is an integer number (54797794758).

Almost surely, 2688868030092 is an apocalyptic number.

It is an amenable number.

688868030092 is a deficient number, since it is larger than the sum of its proper divisors (626279044100).

688868030092 is a wasteful number, since it uses less digits than its factorization.

688868030092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421209 (or 421207 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 688868030092 in words is "six hundred eighty-eight billion, eight hundred sixty-eight million, thirty thousand, ninety-two".

Divisors: 1 2 4 11 22 44 41201 82402 164804 379993 453211 759986 906422 1519972 1812844 4179923 8359846 16719692 15656091593 31312183186 62624366372 172217007523 344434015046 688868030092