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142251024 = 24319612557
BaseRepresentation
bin10000111101010…
…01010000010000
3100220200002201110
420132221100100
5242404013044
622040533320
73345054006
oct1036512020
9326602643
10142251024
117332a333
123b781240
1323617b06
1414c6ca76
15c74d6b9
hex87a9410

142251024 has 80 divisors (see below), whose sum is σ = 393318080. Its totient is φ = 44167680.

The previous prime is 142251023. The next prime is 142251059. The reversal of 142251024 is 420152241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142251023) 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, 54354 + ... + 56910.

It is an arithmetic number, because the mean of its divisors is an integer number (4916476).

Almost surely, 2142251024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142251024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196659040).

142251024 is an abundant number, since it is smaller than the sum of its proper divisors (251067056).

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

142251024 is a wasteful number, since it uses less digits than its factorization.

142251024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648 (or 2642 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142251024 is about 11926.9033701125. The cubic root of 142251024 is about 522.0175857612.

The spelling of 142251024 in words is "one hundred forty-two million, two hundred fifty-one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 61 76 114 122 152 183 228 244 304 366 456 488 732 912 976 1159 1464 2318 2557 2928 3477 4636 5114 6954 7671 9272 10228 13908 15342 18544 20456 27816 30684 40912 48583 55632 61368 97166 122736 145749 155977 194332 291498 311954 388664 467931 582996 623908 777328 935862 1165992 1247816 1871724 2331984 2495632 2963563 3743448 5927126 7486896 8890689 11854252 17781378 23708504 35562756 47417008 71125512 142251024