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64256252012430 = 2352141875067081
BaseRepresentation
bin11101001110000110100110…
…00100110110011110001110
322102111211121200110012202120
432213003103010312132032
531410233301003344210
6344354525322233410
716351234553213022
oct1647032304663616
9272454550405676
1064256252012430
1119523a18116445
127259360955866
1329b1452a9a23a
1411c203a938382
157666bc690270
hex3a70d313678e

64256252012430 has 16 divisors (see below), whose sum is σ = 154215004829904. Its totient is φ = 17135000536640.

The previous prime is 64256252012423. The next prime is 64256252012503. The reversal of 64256252012430 is 3421025265246.

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, 1070937533511 + ... + 1070937533570.

It is an arithmetic number, because the mean of its divisors is an integer number (9638437801869).

Almost surely, 264256252012430 is an apocalyptic number.

64256252012430 is an abundant number, since it is smaller than the sum of its proper divisors (89958752817474).

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

64256252012430 is a wasteful number, since it uses less digits than its factorization.

64256252012430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141875067091.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 64256252012430 its reverse (3421025265246), we get a palindrome (67677277277676).

The spelling of 64256252012430 in words is "sixty-four trillion, two hundred fifty-six billion, two hundred fifty-two million, twelve thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2141875067081 4283750134162 6425625201243 10709375335405 12851250402486 21418750670810 32128126006215 64256252012430