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122039693 is a prime number
BaseRepresentation
bin1110100011000…
…10110110001101
322111122020222122
413101202312031
5222220232233
620035422325
73011214566
oct721426615
9274566878
10122039693
1162985256
1234a549a5
131c38c449
14122cb16d
15aaa9d98
hex7462d8d

122039693 has 2 divisors, whose sum is σ = 122039694. Its totient is φ = 122039692.

The previous prime is 122039663. The next prime is 122039741. The reversal of 122039693 is 396930221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116596804 + 5442889 = 10798^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 122039693 - 214 = 122023309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122039623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61019846 + 61019847.

It is an arithmetic number, because the mean of its divisors is an integer number (61019847).

Almost surely, 2122039693 is an apocalyptic number.

It is an amenable number.

122039693 is a deficient number, since it is larger than the sum of its proper divisors (1).

122039693 is an equidigital number, since it uses as much as digits as its factorization.

122039693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 122039693 is about 11047.1576887451. The cubic root of 122039693 is about 496.0213486410.

The spelling of 122039693 in words is "one hundred twenty-two million, thirty-nine thousand, six hundred ninety-three".