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55203132152 = 2371951882643
BaseRepresentation
bin110011011010010111…
…001111001011111000
312021111012102200010002
4303122113033023320
51401024000212102
641205430412132
73662661611150
oct633227171370
9167435380102
1055203132152
1121458802273
12a847501048
135289a1144c
14295978b760
151681573902
hexcda5cf2f8

55203132152 has 32 divisors (see below), whose sum is σ = 124518345600. Its totient is φ = 22413301344.

The previous prime is 55203132121. The next prime is 55203132157. The reversal of 55203132152 is 25123130255.

It is a super-2 number, since 2×552031321522 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203132157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25940258 + ... + 25942385.

It is an arithmetic number, because the mean of its divisors is an integer number (3891198300).

Almost surely, 255203132152 is an apocalyptic number.

It is an amenable number.

55203132152 is an abundant number, since it is smaller than the sum of its proper divisors (69315213448).

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

55203132152 is a wasteful number, since it uses less digits than its factorization.

55203132152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51882675 (or 51882671 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 55203132152 in words is "fifty-five billion, two hundred three million, one hundred thirty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 51882643 103765286 207530572 363178501 415061144 726357002 985770217 1452714004 1971540434 2905428008 3943080868 6900391519 7886161736 13800783038 27601566076 55203132152