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102232415 = 5139147097
BaseRepresentation
bin1100001011111…
…11000101011111
321010100221111202
412011333011133
5202132414130
614051110115
72350650455
oct605770537
9233327452
10102232415
11527867aa
122a2a233b
131824596c
14d8129d5
158e96145
hex617f15f

102232415 has 8 divisors (see below), whose sum is σ = 123562320. Its totient is φ = 81196992.

The previous prime is 102232409. The next prime is 102232423. The reversal of 102232415 is 514232201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102232415 - 28 = 102232159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72854 + ... + 74243.

It is an arithmetic number, because the mean of its divisors is an integer number (15445290).

Almost surely, 2102232415 is an apocalyptic number.

102232415 is a deficient number, since it is larger than the sum of its proper divisors (21329905).

102232415 is a wasteful number, since it uses less digits than its factorization.

102232415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147241.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102232415 is about 10111.0046484017. The cubic root of 102232415 is about 467.5874792211.

Adding to 102232415 its reverse (514232201), we get a palindrome (616464616).

The spelling of 102232415 in words is "one hundred two million, two hundred thirty-two thousand, four hundred fifteen".

Divisors: 1 5 139 695 147097 735485 20446483 102232415