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245040125307210 = 23255043495398381
BaseRepresentation
bin110111101101110011011001…
…100111111110100101001010
31012010121121101122111222222100
4313231303121213332211022
5224104214134034312320
62225053513550534230
7102420364510541442
oct6755633147764512
91163547348458870
10245040125307210
1171093a2a60a0a2
1223596502207376
13a69625293491c
144472010951122
151d4e0c8eb7790
hexdedcd99fe94a

245040125307210 has 48 divisors (see below), whose sum is σ = 637105707037800. Its totient is φ = 65343891749760.

The previous prime is 245040125307203. The next prime is 245040125307217. The reversal of 245040125307210 is 12703521040542.

245040125307210 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 40 + 1 + 2 + 530 + 72 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (245040125307203) and next prime (245040125307217).

It can be written as a sum of positive squares in 4 ways, for example, as 128122681318641 + 116917443988569 = 11319129^2 + 10812837^2 .

It is not an unprimeable number, because it can be changed into a prime (245040125307217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42692220 + ... + 48090600.

Almost surely, 2245040125307210 is an apocalyptic number.

245040125307210 is an abundant number, since it is smaller than the sum of its proper divisors (392065581730590).

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

245040125307210 is a wasteful number, since it uses less digits than its factorization.

245040125307210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902743 (or 5902740 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 245040125307210 its reverse (12703521040542), we get a palindrome (257743646347752).

The spelling of 245040125307210 in words is "two hundred forty-five trillion, forty billion, one hundred twenty-five million, three hundred seven thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 504349 1008698 1513047 2521745 3026094 4539141 5043490 5398381 7565235 9078282 10796762 15130470 16195143 22695705 26991905 32390286 45391410 48585429 53983810 80975715 97170858 161951430 242927145 485854290 2722668058969 5445336117938 8168004176907 13613340294845 16336008353814 24504012530721 27226680589690 40840020884535 49008025061442 81680041769070 122520062653605 245040125307210