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13952731894 = 2293741347457
BaseRepresentation
bin11001111111010010…
…11100101011110110
31100000101112012220221
430333221130223312
5212033344410034
610224303244554
71002522156433
oct147751345366
940011465827
1013952731894
115a0aa53a92
1228548a975a
13141489c09a
149650d0b8a
15569de7bb4
hex33fa5caf6

13952731894 has 64 divisors (see below), whose sum is σ = 22893917760. Its totient is φ = 6361528320.

The previous prime is 13952731889. The next prime is 13952731907. The reversal of 13952731894 is 49813725931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30530914 + ... + 30531370.

It is an arithmetic number, because the mean of its divisors is an integer number (357717465).

Almost surely, 213952731894 is an apocalyptic number.

13952731894 is a deficient number, since it is larger than the sum of its proper divisors (8941185866).

13952731894 is a wasteful number, since it uses less digits than its factorization.

13952731894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its digits is 1632960, while the sum is 52.

The spelling of 13952731894 in words is "thirteen billion, nine hundred fifty-two million, seven hundred thirty-one thousand, eight hundred ninety-four".

Divisors: 1 2 29 37 41 58 74 82 347 457 694 914 1073 1189 1517 2146 2378 3034 10063 12839 13253 14227 16909 18737 20126 25678 26506 28454 33818 37474 43993 87986 158579 317158 372331 412583 490361 526399 543373 693269 744662 825166 980722 1052798 1086746 1386538 4598791 5867423 6501739 9197582 11734846 13003478 15265571 20104801 30531142 40209602 170155267 188550431 240564343 340310534 377100862 481128686 6976365947 13952731894