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124138948 = 2231034737
BaseRepresentation
bin1110110011000…
…11010111000100
322122120220121211
413121203113010
5223234421243
620152421204
73035110063
oct731432704
9278526554
10124138948
116408947a
12356a7804
131c945acb
14126b61da
15ad71d9d
hex76635c4

124138948 has 6 divisors (see below), whose sum is σ = 217243166. Its totient is φ = 62069472.

The previous prime is 124138943. The next prime is 124138957. The reversal of 124138948 is 849831421.

It can be written as a sum of positive squares in only one way, i.e., 71605444 + 52533504 = 8462^2 + 7248^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 124138948.

It is not an unprimeable number, because it can be changed into a prime (124138943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15517365 + ... + 15517372.

Almost surely, 2124138948 is an apocalyptic number.

It is an amenable number.

124138948 is a deficient number, since it is larger than the sum of its proper divisors (93104218).

124138948 is a wasteful number, since it uses less digits than its factorization.

124138948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31034741 (or 31034739 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 124138948 is about 11141.7659282539. The cubic root of 124138948 is about 498.8492844055.

The spelling of 124138948 in words is "one hundred twenty-four million, one hundred thirty-eight thousand, nine hundred forty-eight".

Divisors: 1 2 4 31034737 62069474 124138948