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53206307 = 721198713
BaseRepresentation
bin1100101011110…
…1110100100011
310201010011022222
43022331310203
5102110100212
65140221255
71214150300
oct312756443
9121104288
1053206307
1128040760
121599a82b
13b03b92b
1470d00a7
154a0ec72
hex32bdd23

53206307 has 12 divisors (see below), whose sum is σ = 67520376. Its totient is φ = 41459040.

The previous prime is 53206301. The next prime is 53206319. The reversal of 53206307 is 70360235.

It is not a de Polignac number, because 53206307 - 210 = 53205283 is a prime.

It is a super-2 number, since 2×532063072 = 5661822209156498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53206301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48818 + ... + 49895.

It is an arithmetic number, because the mean of its divisors is an integer number (5626698).

Almost surely, 253206307 is an apocalyptic number.

53206307 is a deficient number, since it is larger than the sum of its proper divisors (14314069).

53206307 is a wasteful number, since it uses less digits than its factorization.

53206307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98738 (or 98731 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 53206307 is about 7294.2653502598. The cubic root of 53206307 is about 376.1153330931.

The spelling of 53206307 in words is "fifty-three million, two hundred six thousand, three hundred seven".

Divisors: 1 7 11 49 77 539 98713 690991 1085843 4836937 7600901 53206307