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72572212153 = 710367458879
BaseRepresentation
bin100001110010110100…
…1000001001110111001
320221022200102100121101
41003211221001032321
52142111441242103
653201134211401
75146256424310
oct1034551011671
9227280370541
1072572212153
1128861138141
1212094353b61
136ac730b48c
1437264a3277
151d4b352a1d
hex10e5a413b9

72572212153 has 4 divisors (see below), whose sum is σ = 82939671040. Its totient is φ = 62204753268.

The previous prime is 72572212121. The next prime is 72572212157. The reversal of 72572212153 is 35121227527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35121227527 = 42821820187.

It is not a de Polignac number, because 72572212153 - 25 = 72572212121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72572212157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5183729433 + ... + 5183729446.

It is an arithmetic number, because the mean of its divisors is an integer number (20734917760).

Almost surely, 272572212153 is an apocalyptic number.

It is an amenable number.

72572212153 is a deficient number, since it is larger than the sum of its proper divisors (10367458887).

72572212153 is a wasteful number, since it uses less digits than its factorization.

72572212153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367458886.

The product of its digits is 58800, while the sum is 37.

The spelling of 72572212153 in words is "seventy-two billion, five hundred seventy-two million, two hundred twelve thousand, one hundred fifty-three".

Divisors: 1 7 10367458879 72572212153