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55289291460 = 223513131541097
BaseRepresentation
bin110011011111011111…
…111010001011000100
312021201012120000110120
4303133133322023010
51401213024311320
641222145221540
73665056136364
oct633737721304
9167635500416
1055289291460
11214a2400007
12a8703318b0
1352a181a1a0
142966db89a4
151688de2440
hexcdf7fa2c4

55289291460 has 96 divisors (see below), whose sum is σ = 167991449472. Its totient is φ = 13505756160.

The previous prime is 55289291419. The next prime is 55289291467. The reversal of 55289291460 is 6419298255.

It is not an unprimeable number, because it can be changed into a prime (55289291467) 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, 168369 + ... + 372728.

It is an arithmetic number, because the mean of its divisors is an integer number (1749910932).

Almost surely, 255289291460 is an apocalyptic number.

It is an amenable number.

55289291460 is an abundant number, since it is smaller than the sum of its proper divisors (112702158012).

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

55289291460 is a wasteful number, since it uses less digits than its factorization.

55289291460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541253 (or 541251 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 55289291460 in words is "fifty-five billion, two hundred eighty-nine million, two hundred ninety-one thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 131 156 195 260 262 390 393 524 655 780 786 1310 1572 1703 1965 2620 3406 3930 5109 6812 7860 8515 10218 17030 20436 25545 34060 51090 102180 541097 1082194 1623291 2164388 2705485 3246582 5410970 6493164 7034261 8116455 10821940 14068522 16232910 21102783 28137044 32465820 35171305 42205566 70342610 70883707 84411132 105513915 140685220 141767414 211027830 212651121 283534828 354418535 422055660 425302242 708837070 850604484 921488191 1063255605 1417674140 1842976382 2126511210 2764464573 3685952764 4253022420 4607440955 5528929146 9214881910 11057858292 13822322865 18429763820 27644645730 55289291460