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55052307 = 32173491031
BaseRepresentation
bin1101001000000…
…0100000010011
310211120221120100
43102000200103
5103043133212
65243543443
71235636232
oct322004023
9124527510
1055052307
1129091682
121652ab83
13b536c3b
147450b19
154c76bdc
hex3480813

55052307 has 24 divisors (see below), whose sum is σ = 84520800. Its totient is φ = 34410240.

The previous prime is 55052281. The next prime is 55052321. The reversal of 55052307 is 70325055.

It is not a de Polignac number, because 55052307 - 26 = 55052243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55052407) 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, 52882 + ... + 53912.

It is an arithmetic number, because the mean of its divisors is an integer number (3521700).

Almost surely, 255052307 is an apocalyptic number.

55052307 is a deficient number, since it is larger than the sum of its proper divisors (29468493).

55052307 is a wasteful number, since it uses less digits than its factorization.

55052307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55052307 is about 7419.7241862484. The cubic root of 55052307 is about 380.4157660806.

The spelling of 55052307 in words is "fifty-five million, fifty-two thousand, three hundred seven".

Divisors: 1 3 9 17 51 153 349 1031 1047 3093 3141 5933 9279 17527 17799 52581 53397 157743 359819 1079457 3238371 6116923 18350769 55052307