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253487074 = 2374772883
BaseRepresentation
bin11110001101111…
…10011111100010
3122122222110220011
433012332133202
51004343041244
641053035134
76165414241
oct1706763742
9578873804
10253487074
111200a5655
1270a85aaa
1340693969
1425946958
15173c2434
hexf1be7e2

253487074 has 16 divisors (see below), whose sum is σ = 398821248. Its totient is φ = 120692592.

The previous prime is 253487053. The next prime is 253487077. The reversal of 253487074 is 470784352.

It is not an unprimeable number, because it can be changed into a prime (253487077) 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, 32964 + ... + 39919.

It is an arithmetic number, because the mean of its divisors is an integer number (24926328).

Almost surely, 2253487074 is an apocalyptic number.

253487074 is a deficient number, since it is larger than the sum of its proper divisors (145334174).

253487074 is a wasteful number, since it uses less digits than its factorization.

253487074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72969.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 253487074 is about 15921.2773985004. The cubic root of 253487074 is about 632.8759701321.

The spelling of 253487074 in words is "two hundred fifty-three million, four hundred eighty-seven thousand, seventy-four".

Divisors: 1 2 37 47 74 94 1739 3478 72883 145766 2696671 3425501 5393342 6851002 126743537 253487074