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83722053 = 327907351
BaseRepresentation
bin1001111110101…
…11111101000101
312211112112001210
410333113331011
5132413101203
612150242033
72034424422
oct477277505
9184475053
1083722053
1143293688
1224056319
131446459c
14b194d49
15753b803
hex4fd7f45

83722053 has 4 divisors (see below), whose sum is σ = 111629408. Its totient is φ = 55814700.

The previous prime is 83722027. The next prime is 83722081. The reversal of 83722053 is 35022738.

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.

It is not a de Polignac number, because 83722053 - 221 = 81624901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83722053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83722013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13953673 + ... + 13953678.

It is an arithmetic number, because the mean of its divisors is an integer number (27907352).

Almost surely, 283722053 is an apocalyptic number.

It is an amenable number.

83722053 is a deficient number, since it is larger than the sum of its proper divisors (27907355).

83722053 is a wasteful number, since it uses less digits than its factorization.

83722053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27907354.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 83722053 is about 9149.9755737379. The cubic root of 83722053 is about 437.4683349055.

The spelling of 83722053 in words is "eighty-three million, seven hundred twenty-two thousand, fifty-three".

Divisors: 1 3 27907351 83722053