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88191688930 = 2543205096951
BaseRepresentation
bin101001000100010100…
…0100110000011100010
322102122020012222200021
41102020220212003202
52421104033021210
6104303101544054
76241320662422
oct1221050460342
9272566188607
1088191688930
1134446a00234
121511327502a
1384162b2327
1443a8aa0482
152462730bda
hex1488a260e2

88191688930 has 16 divisors (see below), whose sum is σ = 162436785984. Its totient is φ = 34456287600.

The previous prime is 88191688913. The next prime is 88191688993. The reversal of 88191688930 is 3988619188.

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 7 ways as a sum of consecutive naturals, for example, 102548046 + ... + 102548905.

It is an arithmetic number, because the mean of its divisors is an integer number (10152299124).

Almost surely, 288191688930 is an apocalyptic number.

88191688930 is a deficient number, since it is larger than the sum of its proper divisors (74245097054).

88191688930 is a wasteful number, since it uses less digits than its factorization.

88191688930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205097001.

The product of its (nonzero) digits is 5971968, while the sum is 61.

The spelling of 88191688930 in words is "eighty-eight billion, one hundred ninety-one million, six hundred eighty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 205096951 410193902 1025484755 2050969510 8819168893 17638337786 44095844465 88191688930