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257516113070 = 2587132955539
BaseRepresentation
bin1110111111010100101…
…0000000110010101110
3220121200201222221221102
43233311022000302232
513204343111104240
6314145024003102
724414326562566
oct3576512006256
9817621887842
10257516113070
119a237150247
1241aa9760492
131b38c29c088
14c66cb19da6
156a72ad0815
hex3bf5280cae

257516113070 has 16 divisors (see below), whose sum is σ = 463582360080. Its totient is φ = 102994588224.

The previous prime is 257516113031. The next prime is 257516113081. The reversal of 257516113070 is 70311615752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390640 + ... + 1564899.

It is an arithmetic number, because the mean of its divisors is an integer number (28973897505).

Almost surely, 2257516113070 is an apocalyptic number.

257516113070 is a deficient number, since it is larger than the sum of its proper divisors (206066247010).

257516113070 is a wasteful number, since it uses less digits than its factorization.

257516113070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964259.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 257516113070 in words is "two hundred fifty-seven billion, five hundred sixteen million, one hundred thirteen thousand, seventy".

Divisors: 1 2 5 10 8713 17426 43565 87130 2955539 5911078 14777695 29555390 25751611307 51503222614 128758056535 257516113070