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102612045 = 3547145549
BaseRepresentation
bin1100001110110…
…11110001001101
321011002020021010
412013123301031
5202232041140
614103155433
72354121324
oct607336115
9234066233
10102612045
1152a15a48
122a445b79
13183496b3
14d8b10bb
15901d880
hex61dbc4d

102612045 has 16 divisors (see below), whose sum is σ = 167673600. Its totient is φ = 53561664.

The previous prime is 102612031. The next prime is 102612067. The reversal of 102612045 is 540216201.

It is not a de Polignac number, because 102612045 - 27 = 102611917 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72070 + ... + 73479.

It is an arithmetic number, because the mean of its divisors is an integer number (10479600).

Almost surely, 2102612045 is an apocalyptic number.

102612045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102612045 is a deficient number, since it is larger than the sum of its proper divisors (65061555).

102612045 is a wasteful number, since it uses less digits than its factorization.

102612045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145604.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102612045 is about 10129.7603624173. The cubic root of 102612045 is about 468.1655442919.

Adding to 102612045 its reverse (540216201), we get a palindrome (642828246).

The spelling of 102612045 in words is "one hundred two million, six hundred twelve thousand, forty-five".

Divisors: 1 3 5 15 47 141 235 705 145549 436647 727745 2183235 6840803 20522409 34204015 102612045