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120552057 = 352831753
BaseRepresentation
bin1110010111101…
…11101001111001
322101211200100000
413023313221321
5221330131212
615543503213
72662450503
oct713675171
9271750300
10120552057
11620595aa
1234457b09
131bc8b2a2
1412020d73
15a8b41dc
hex72f7a79

120552057 has 24 divisors (see below), whose sum is σ = 181321504. Its totient is φ = 80038368.

The previous prime is 120552041. The next prime is 120552071. The reversal of 120552057 is 750255021.

It is a happy number.

It is not a de Polignac number, because 120552057 - 24 = 120552041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 120552057.

It is not an unprimeable number, because it can be changed into a prime (120552007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67893 + ... + 69645.

Almost surely, 2120552057 is an apocalyptic number.

It is an amenable number.

120552057 is a deficient number, since it is larger than the sum of its proper divisors (60769447).

120552057 is an equidigital number, since it uses as much as digits as its factorization.

120552057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 120552057 is about 10979.6200753942. The cubic root of 120552057 is about 493.9976410472.

The spelling of 120552057 in words is "one hundred twenty million, five hundred fifty-two thousand, fifty-seven".

Divisors: 1 3 9 27 81 243 283 849 1753 2547 5259 7641 15777 22923 47331 68769 141993 425979 496099 1488297 4464891 13394673 40184019 120552057