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122740801 = 127966463
BaseRepresentation
bin1110101000011…
…10000001000001
322112221212201121
413110032001001
5222410201201
620102432241
73020164621
oct724160101
9275855647
10122740801
1163313a87
1235132681
131c5765c1
1412430881
15ab979a1
hex750e041

122740801 has 4 divisors (see below), whose sum is σ = 123707392. Its totient is φ = 121774212.

The previous prime is 122740771. The next prime is 122740819. The reversal of 122740801 is 108047221.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 122740801 - 211 = 122738753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122740831) 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, 483105 + ... + 483358.

It is an arithmetic number, because the mean of its divisors is an integer number (30926848).

Almost surely, 2122740801 is an apocalyptic number.

It is an amenable number.

122740801 is a deficient number, since it is larger than the sum of its proper divisors (966591).

122740801 is an equidigital number, since it uses as much as digits as its factorization.

122740801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966590.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 122740801 is about 11078.8447502436. The cubic root of 122740801 is about 496.9694027399.

The spelling of 122740801 in words is "one hundred twenty-two million, seven hundred forty thousand, eight hundred one".

Divisors: 1 127 966463 122740801