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70668888 = 2332944537
BaseRepresentation
bin1000011011001…
…01001001011000
311220222100111020
410031211021120
5121042401023
611002402440
71515450513
oct415451130
9156870436
1070668888
1136988644
121b800420
1311844114
149557d7a
15630dde3
hex4365258

70668888 has 16 divisors (see below), whose sum is σ = 176672280. Its totient is φ = 23556288.

The previous prime is 70668887. The next prime is 70668893. The reversal of 70668888 is 88886607.

It is a self number, because there is not a number n which added to its sum of digits gives 70668888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70668887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472245 + ... + 1472292.

Almost surely, 270668888 is an apocalyptic number.

It is an amenable number.

70668888 is an abundant number, since it is smaller than the sum of its proper divisors (106003392).

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

70668888 is a wasteful number, since it uses less digits than its factorization.

70668888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944546 (or 2944542 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 70668888 is about 8406.4789299682. The cubic root of 70668888 is about 413.4370747809.

The spelling of 70668888 in words is "seventy million, six hundred sixty-eight thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 2944537 5889074 8833611 11778148 17667222 23556296 35334444 70668888