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103257429 = 31129107897
BaseRepresentation
bin1100010011110…
…01010101010101
321012022000120020
412021321111111
5202413214204
614125055353
72362450032
oct611712525
9235260506
10103257429
1153316920
122a6b7559
1318514392
14d9dc389
1590e9bd9
hex6279555

103257429 has 16 divisors (see below), whose sum is σ = 155373120. Its totient is φ = 60421760.

The previous prime is 103257389. The next prime is 103257431. The reversal of 103257429 is 924752301.

It is a cyclic number.

It is not a de Polignac number, because 103257429 - 215 = 103224661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103257429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103257499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52992 + ... + 54905.

It is an arithmetic number, because the mean of its divisors is an integer number (9710820).

Almost surely, 2103257429 is an apocalyptic number.

It is an amenable number.

103257429 is a deficient number, since it is larger than the sum of its proper divisors (52115691).

103257429 is a wasteful number, since it uses less digits than its factorization.

103257429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107940.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 103257429 is about 10161.5662670673. The cubic root of 103257429 is about 469.1450111765.

The spelling of 103257429 in words is "one hundred three million, two hundred fifty-seven thousand, four hundred twenty-nine".

Divisors: 1 3 11 29 33 87 319 957 107897 323691 1186867 3129013 3560601 9387039 34419143 103257429