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280280148102 = 2341730124371
BaseRepresentation
bin1000001010000011111…
…11111010100010000110
3222210110012112202110000
410011001333322202012
514043003204214402
6332431532142130
726151413643633
oct4050177724206
9883405482400
10280280148102
11a8958922739
12463a1307946
13205794c0ba6
14d7cc14318a
15745632ec1c
hex4141ffa886

280280148102 has 20 divisors (see below), whose sum is σ = 628035147036. Its totient is φ = 93426715980.

The previous prime is 280280148023. The next prime is 280280148103. The reversal of 280280148102 is 201841082082.

280280148102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2802801481022 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280280148103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 865062024 + ... + 865062347.

Almost surely, 2280280148102 is an apocalyptic number.

280280148102 is an abundant number, since it is smaller than the sum of its proper divisors (347754998934).

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

280280148102 is a wasteful number, since it uses less digits than its factorization.

280280148102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730124385 (or 1730124376 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The spelling of 280280148102 in words is "two hundred eighty billion, two hundred eighty million, one hundred forty-eight thousand, one hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 1730124371 3460248742 5190373113 10380746226 15571119339 31142238678 46713358017 93426716034 140140074051 280280148102