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122948663 = 472615929
BaseRepresentation
bin1110101010000…
…00110000110111
322120100102212012
413111000300313
5222433324123
620111114435
73022021625
oct725006067
9276312765
10122948663
1163446172
1235212a1b
131c61a0b6
1412486515
15abd9378
hex7540c37

122948663 has 4 divisors (see below), whose sum is σ = 125564640. Its totient is φ = 120332688.

The previous prime is 122948659. The next prime is 122948681. The reversal of 122948663 is 366849221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366849221 = 2831296287.

It is a cyclic number.

It is not a de Polignac number, because 122948663 - 22 = 122948659 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 122948663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122948963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307918 + ... + 1308011.

It is an arithmetic number, because the mean of its divisors is an integer number (31391160).

Almost surely, 2122948663 is an apocalyptic number.

122948663 is a deficient number, since it is larger than the sum of its proper divisors (2615977).

122948663 is an equidigital number, since it uses as much as digits as its factorization.

122948663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615976.

The product of its digits is 124416, while the sum is 41.

The square root of 122948663 is about 11088.2218141594. The cubic root of 122948663 is about 497.2497843636.

The spelling of 122948663 in words is "one hundred twenty-two million, nine hundred forty-eight thousand, six hundred sixty-three".

Divisors: 1 47 2615929 122948663