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25530113000028 = 22371372277323467
BaseRepresentation
bin1011100111000001100010…
…10100010000001001011100
310100101122200110201020120210
411303200301110100021130
511321241132412000103
6130144212204012420
75243326666650420
oct563406124201134
9110348613636523
1025530113000028
11815329524667a
122a43aa7231110
131132630103880
14643942288b80
152e416bbd5e03
hex17383151025c

25530113000028 has 96 divisors (see below), whose sum is σ = 73318488646144. Its totient is φ = 6733102641408.

The previous prime is 25530113000027. The next prime is 25530113000107. The reversal of 25530113000028 is 82000031103552.

It is a junction number, because it is equal to n+sod(n) for n = 25530112999959 and 25530113000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530113000027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78764751 + ... + 79088217.

Almost surely, 225530113000028 is an apocalyptic number.

25530113000028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25530113000028 is an abundant number, since it is smaller than the sum of its proper divisors (47788375646116).

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

25530113000028 is a wasteful number, since it uses less digits than its factorization.

25530113000028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395771 (or 395769 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 25530113000028 in words is "twenty-five trillion, five hundred thirty billion, one hundred thirteen million, twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 72277 144554 216831 289108 323467 433662 505939 646934 867324 939601 970401 1011878 1293868 1517817 1879202 1940802 2023756 2264269 2818803 3035634 3758404 3881604 4205071 4528538 5637606 6071268 6577207 6792807 8410142 9057076 11275212 12615213 13154414 13585614 16820284 19731621 25230426 26308828 27171228 29435497 39463242 50460852 58870994 78926484 88306491 117741988 176612982 353225964 23379224359 46758448718 70137673077 93516897436 140275346154 163654570513 280550692308 303929916667 327309141026 490963711539 607859833334 654618282052 911789750001 981927423078 1215719666668 1823579500002 1963854846156 2127509416669 3647159000004 4255018833338 6382528250007 8510037666676 12765056500014 25530113000028