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10202145144 = 2332329363079
BaseRepresentation
bin10011000000001100…
…00110000101111000
3222100000010200010120
421200012012011320
5131343222121034
64404203213240
7510550542252
oct114006060570
928300120116
1010202145144
114365932714
121b88817220
13c67845c99
146cad42cd2
153ea9dcc49
hex260186178

10202145144 has 64 divisors (see below), whose sum is σ = 26705548800. Its totient is φ = 3241704576.

The previous prime is 10202145131. The next prime is 10202145197. The reversal of 10202145144 is 44154120201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130197 + ... + 193275.

It is an arithmetic number, because the mean of its divisors is an integer number (417274200).

Almost surely, 210202145144 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 10202145144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13352774400).

10202145144 is an abundant number, since it is smaller than the sum of its proper divisors (16503403656).

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

10202145144 is a wasteful number, since it uses less digits than its factorization.

10202145144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63404 (or 63400 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 10202145144 its reverse (44154120201), we get a palindrome (54356265345).

The spelling of 10202145144 in words is "ten billion, two hundred two million, one hundred forty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 293 552 586 879 1172 1758 2344 3516 6739 7032 13478 20217 26956 40434 53912 63079 80868 126158 161736 189237 252316 378474 504632 756948 1450817 1513896 2901634 4352451 5803268 8704902 11606536 17409804 18482147 34819608 36964294 55446441 73928588 110892882 147857176 221785764 425089381 443571528 850178762 1275268143 1700357524 2550536286 3400715048 5101072572 10202145144