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1474572138 = 231318904771
BaseRepresentation
bin101011111100100…
…0010111101101010
310210202200000200220
41113321002331222
511004442302023
6402153110510
751353441064
oct12771027552
93722600626
101474572138
116973a2966
123519b8436
131a665b3c0
14ddba4734
15896c53e3
hex57e42f6a

1474572138 has 16 divisors (see below), whose sum is σ = 3176001696. Its totient is φ = 453714480.

The previous prime is 1474572119. The next prime is 1474572139. The reversal of 1474572138 is 8312754741.

It is a self number, because there is not a number n which added to its sum of digits gives 1474572138.

It is not an unprimeable number, because it can be changed into a prime (1474572139) 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, 9452308 + ... + 9452463.

It is an arithmetic number, because the mean of its divisors is an integer number (198500106).

Almost surely, 21474572138 is an apocalyptic number.

1474572138 is an abundant number, since it is smaller than the sum of its proper divisors (1701429558).

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

1474572138 is a wasteful number, since it uses less digits than its factorization.

1474572138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18904789.

The product of its digits is 188160, while the sum is 42.

The square root of 1474572138 is about 38400.1580465498. The cubic root of 1474572138 is about 1138.2089805164.

The spelling of 1474572138 in words is "one billion, four hundred seventy-four million, five hundred seventy-two thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 18904771 37809542 56714313 113428626 245762023 491524046 737286069 1474572138