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102545061 = 3307111341
BaseRepresentation
bin1100001110010…
…11011010100101
321010221211101020
412013023122211
5202222420221
614101521353
72353422123
oct607133245
9233854336
10102545061
115297a693
122a413259
1318325068
14d894913
159008ac6
hex61cb6a5

102545061 has 8 divisors (see below), whose sum is σ = 137173344. Its totient is φ = 68140080.

The previous prime is 102545057. The next prime is 102545077. The reversal of 102545061 is 160545201.

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

It is not a de Polignac number, because 102545061 - 22 = 102545057 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102544061) 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, 54750 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (17146668).

Almost surely, 2102545061 is an apocalyptic number.

It is an amenable number.

102545061 is a deficient number, since it is larger than the sum of its proper divisors (34628283).

102545061 is a wasteful number, since it uses less digits than its factorization.

102545061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111651.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102545061 is about 10126.4535252970. The cubic root of 102545061 is about 468.0636510329.

The spelling of 102545061 in words is "one hundred two million, five hundred forty-five thousand, sixty-one".

Divisors: 1 3 307 921 111341 334023 34181687 102545061