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142811045664 = 25372298312613
BaseRepresentation
bin1000010100000000110…
…0111001111100100000
3111122121202011210110120
42011000030321330200
54314434111430124
6145335000200240
713213663600500
oct2050014717440
9448552153416
10142811045664
1155625126381
1223817169080
131060c088a21
146caaac9a00
153aac8ddd79
hex2140339f20

142811045664 has 288 divisors, whose sum is σ = 456592489920. Its totient is φ = 38918412288.

The previous prime is 142811045659. The next prime is 142811045681. The reversal of 142811045664 is 466540118241.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11316222 + ... + 11328834.

It is an arithmetic number, because the mean of its divisors is an integer number (1585390590).

Almost surely, 2142811045664 is an apocalyptic number.

142811045664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142811045664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228296244960).

142811045664 is an abundant number, since it is smaller than the sum of its proper divisors (313781444256).

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

142811045664 is a wasteful number, since it uses less digits than its factorization.

142811045664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752 (or 12737 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 142811045664 in words is "one hundred forty-two billion, eight hundred eleven million, forty-five thousand, six hundred sixty-four".