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102440124 = 22323776907
BaseRepresentation
bin1100001101100…
…01110010111100
321010202111102200
412012301302330
5202211040444
614055351500
72352504153
oct606616274
9233674380
10102440124
1152908866
122a382590
13182b9377
14d86859a
158ed7969
hex61b1cbc

102440124 has 36 divisors (see below), whose sum is σ = 265947864. Its totient is φ = 33223392.

The previous prime is 102440101. The next prime is 102440131. The reversal of 102440124 is 421044201.

102440124 is a `hidden beast` number, since 102 + 440 + 124 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102440097 and 102440106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37122 + ... + 39785.

Almost surely, 2102440124 is an apocalyptic number.

It is an amenable number.

102440124 is an abundant number, since it is smaller than the sum of its proper divisors (163507740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102440124 is a wasteful number, since it uses less digits than its factorization.

102440124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76954 (or 76949 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 102440124 is about 10121.2708688188. The cubic root of 102440124 is about 467.9039360137.

Adding to 102440124 its reverse (421044201), we get a palindrome (523484325).

The spelling of 102440124 in words is "one hundred two million, four hundred forty thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 76907 153814 230721 307628 461442 692163 922884 1384326 2768652 2845559 5691118 8536677 11382236 17073354 25610031 34146708 51220062 102440124