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30192551 is a prime number
BaseRepresentation
bin111001100101…
…1001110100111
32002210221101122
41303023032213
530212130201
62555044155
7514426634
oct163131647
962727348
1030192551
1116052124
12a14065b
13634181c
14401d18b
1529b5e1b
hex1ccb3a7

30192551 has 2 divisors, whose sum is σ = 30192552. Its totient is φ = 30192550.

The previous prime is 30192521. The next prime is 30192557. The reversal of 30192551 is 15529103.

It is a strong prime.

It is an emirp because it is prime and its reverse (15529103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30192551 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30192551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30192557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15096275 + 15096276.

It is an arithmetic number, because the mean of its divisors is an integer number (15096276).

Almost surely, 230192551 is an apocalyptic number.

30192551 is a deficient number, since it is larger than the sum of its proper divisors (1).

30192551 is an equidigital number, since it uses as much as digits as its factorization.

30192551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 30192551 is about 5494.7748816489. The cubic root of 30192551 is about 311.3866119657.

The spelling of 30192551 in words is "thirty million, one hundred ninety-two thousand, five hundred fifty-one".