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53072719 = 719399043
BaseRepresentation
bin1100101001110…
…1001101001111
310200212101002021
43022131031033
5102041311334
65133311011
71213052650
oct312351517
9120771067
1053072719
1127a5a357
1215935467
13acc2b9b
147097527
1549d53b4
hex329d34f

53072719 has 8 divisors (see below), whose sum is σ = 63847040. Its totient is φ = 43096536.

The previous prime is 53072699. The next prime is 53072731. The reversal of 53072719 is 91727035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53072719 - 25 = 53072687 is a prime.

It is a super-2 number, since 2×530727192 = 5633427004105922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53072119) 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, 199389 + ... + 199654.

It is an arithmetic number, because the mean of its divisors is an integer number (7980880).

Almost surely, 253072719 is an apocalyptic number.

53072719 is a deficient number, since it is larger than the sum of its proper divisors (10774321).

53072719 is a wasteful number, since it uses less digits than its factorization.

53072719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399069.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 53072719 is about 7285.1025387430. The cubic root of 53072719 is about 375.8002914671.

The spelling of 53072719 in words is "fifty-three million, seventy-two thousand, seven hundred nineteen".

Divisors: 1 7 19 133 399043 2793301 7581817 53072719