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252415125020 = 225191076207947
BaseRepresentation
bin1110101100010100011…
…1010010011000011100
3220010112020120220211002
43223011013102120130
513113421233000040
6311542524045432
724144040106402
oct3530507223034
9803466526732
10252415125020
1198059837443
1240b05393878
131aa58542056
14c30748b472
156874d7ba15
hex3ac51d261c

252415125020 has 48 divisors (see below), whose sum is σ = 563185042560. Its totient is φ = 94758087744.

The previous prime is 252415125013. The next prime is 252415125023. The reversal of 252415125020 is 20521514252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252415125023) 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, 3063314 + ... + 3144633.

It is an arithmetic number, because the mean of its divisors is an integer number (11733021720).

Almost surely, 2252415125020 is an apocalyptic number.

252415125020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252415125020 is an abundant number, since it is smaller than the sum of its proper divisors (310769917540).

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

252415125020 is a wasteful number, since it uses less digits than its factorization.

252415125020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208082 (or 6208080 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 252415125020 its reverse (20521514252), we get a palindrome (272936639272).

The spelling of 252415125020 in words is "two hundred fifty-two billion, four hundred fifteen million, one hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 107 190 214 380 428 535 1070 2033 2140 4066 8132 10165 20330 40660 6207947 12415894 24831788 31039735 62079470 117950993 124158940 235901986 471803972 589754965 664250329 1179509930 1328500658 2359019860 2657001316 3321251645 6642503290 12620756251 13285006580 25241512502 50483025004 63103781255 126207562510 252415125020