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102270497 = 723795507
BaseRepresentation
bin1100001100010…
…00011000100001
321010102212202012
412012020120201
5202140123442
614052002305
72351166500
oct606103041
9233385665
10102270497
115280237a
122a300395
131825a0b4
14d822837
158ea2582
hex6188621

102270497 has 12 divisors (see below), whose sum is σ = 119303280. Its totient is φ = 87413256.

The previous prime is 102270491. The next prime is 102270517. The reversal of 102270497 is 794072201.

It is not a de Polignac number, because 102270497 - 24 = 102270481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102270491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15818 + ... + 21324.

It is an arithmetic number, because the mean of its divisors is an integer number (9941940).

Almost surely, 2102270497 is an apocalyptic number.

It is an amenable number.

102270497 is a deficient number, since it is larger than the sum of its proper divisors (17032783).

102270497 is an equidigital number, since it uses as much as digits as its factorization.

102270497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 102270497 is about 10112.8876687126. The cubic root of 102270497 is about 467.6455314407.

The spelling of 102270497 in words is "one hundred two million, two hundred seventy thousand, four hundred ninety-seven".

Divisors: 1 7 49 379 2653 5507 18571 38549 269843 2087153 14610071 102270497