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102920268 = 22311779699
BaseRepresentation
bin1100010001001…
…11000001001100
321011122220001210
412020213001030
5202321422033
614113534420
72356544043
oct610470114
9234586053
10102920268
1153106580
122a574410
1318426a89
14d95155a
15907ed63
hex622704c

102920268 has 24 divisors (see below), whose sum is σ = 261979200. Its totient is φ = 31187920.

The previous prime is 102920243. The next prime is 102920269. The reversal of 102920268 is 862029201.

It is not an unprimeable number, because it can be changed into a prime (102920269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389718 + ... + 389981.

It is an arithmetic number, because the mean of its divisors is an integer number (10915800).

Almost surely, 2102920268 is an apocalyptic number.

It is an amenable number.

102920268 is an abundant number, since it is smaller than the sum of its proper divisors (159058932).

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

102920268 is a wasteful number, since it uses less digits than its factorization.

102920268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779717 (or 779715 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 102920268 is about 10144.9626909122. The cubic root of 102920268 is about 468.6338296296.

Adding to 102920268 its reverse (862029201), we get a palindrome (964949469).

The spelling of 102920268 in words is "one hundred two million, nine hundred twenty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 779699 1559398 2339097 3118796 4678194 8576689 9356388 17153378 25730067 34306756 51460134 102920268