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11725124971 = 728352311317
BaseRepresentation
bin10101110101101111…
…10011010101101011
31010021010220001200211
422322313303111223
5143003112444341
65215250041551
7563362626550
oct127267632553
933233801624
1011725124971
114a77588a2a
1223328792b7
13114b222a91
147d3308a27
15489576181
hex2badf356b

11725124971 has 16 divisors (see below), whose sum is σ = 13474395904. Its totient is φ = 9994562784.

The previous prime is 11725124909. The next prime is 11725124977. The reversal of 11725124971 is 17942152711.

It is a cyclic number.

It is not a de Polignac number, because 11725124971 - 233 = 3135190379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11725124977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030405 + ... + 1041721.

It is an arithmetic number, because the mean of its divisors is an integer number (842149744).

Almost surely, 211725124971 is an apocalyptic number.

11725124971 is a deficient number, since it is larger than the sum of its proper divisors (1749270933).

11725124971 is a wasteful number, since it uses less digits than its factorization.

11725124971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130.

The product of its digits is 35280, while the sum is 40.

The spelling of 11725124971 in words is "eleven billion, seven hundred twenty-five million, one hundred twenty-four thousand, nine hundred seventy-one".

Divisors: 1 7 283 523 1981 3661 11317 79219 148009 1036063 3202711 5918791 22418977 41431537 1675017853 11725124971