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20112015070 = 2571716900853
BaseRepresentation
bin10010101110110001…
…001111111011011110
31220220122022020001001
4102232301033323132
5312142133440240
613123410140514
71311252210310
oct225661177336
956818266031
1020112015070
118590787664
123a9358173a
131b86967244
14d8b1237b0
157ca9e589a
hex4aec4fede

20112015070 has 32 divisors (see below), whose sum is σ = 43807013568. Its totient is φ = 6489927168.

The previous prime is 20112015067. The next prime is 20112015107. The reversal of 20112015070 is 7051021102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8449237 + ... + 8451616.

It is an arithmetic number, because the mean of its divisors is an integer number (1368969174).

Almost surely, 220112015070 is an apocalyptic number.

20112015070 is an abundant number, since it is smaller than the sum of its proper divisors (23694998498).

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

20112015070 is a wasteful number, since it uses less digits than its factorization.

20112015070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900884.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 20112015070 its reverse (7051021102), we get a palindrome (27163036172).

The spelling of 20112015070 in words is "twenty billion, one hundred twelve million, fifteen thousand, seventy".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 16900853 33801706 84504265 118305971 169008530 236611942 287314501 574629002 591529855 1183059710 1436572505 2011201507 2873145010 4022403014 10056007535 20112015070