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1932920101 = 72157251257
BaseRepresentation
bin111001100110110…
…0000010100100101
311222201010111220101
41303031200110211
512424311420401
6515445104101
765620356400
oct16315402445
94881114811
101932920101
119020a0532
1245b3b8031
1324a5bba08
141449d6d37
15b4a62101
hex73360525

1932920101 has 12 divisors (see below), whose sum is σ = 2262829548. Its totient is φ = 1646229312.

The previous prime is 1932920089. The next prime is 1932920107. The reversal of 1932920101 is 1010292391.

It can be written as a sum of positive squares in 2 ways, for example, as 1436789025 + 496131076 = 37905^2 + 22274^2 .

It is not a de Polignac number, because 1932920101 - 29 = 1932919589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1932920101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1932920107) 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, 117936 + ... + 133321.

It is an arithmetic number, because the mean of its divisors is an integer number (188569129).

Almost surely, 21932920101 is an apocalyptic number.

It is an amenable number.

1932920101 is a deficient number, since it is larger than the sum of its proper divisors (329909447).

1932920101 is a wasteful number, since it uses less digits than its factorization.

1932920101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251428 (or 251421 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1932920101 is about 43964.9872171027. The cubic root of 1932920101 is about 1245.6746720401.

The spelling of 1932920101 in words is "one billion, nine hundred thirty-two million, nine hundred twenty thousand, one hundred one".

Divisors: 1 7 49 157 1099 7693 251257 1758799 12311593 39447349 276131443 1932920101