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13420552 = 231677569
BaseRepresentation
bin110011001100…
…100000001000
3221020211112111
4303030200020
511413424202
61155352104
7222033655
oct63144010
927224474
1013420552
117637072
1245b2634
132a1b772
141ad4c2c
1512a16d7
hexccc808

13420552 has 8 divisors (see below), whose sum is σ = 25163550. Its totient is φ = 6710272.

The previous prime is 13420541. The next prime is 13420573. The reversal of 13420552 is 25502431.

It can be written as a sum of positive squares in only one way, i.e., 13003236 + 417316 = 3606^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×134205522 = 360222431969408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838777 + ... + 838792.

Almost surely, 213420552 is an apocalyptic number.

It is an amenable number.

13420552 is a deficient number, since it is larger than the sum of its proper divisors (11742998).

13420552 is a wasteful number, since it uses less digits than its factorization.

13420552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677575 (or 1677571 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13420552 is about 3663.4071572786. The cubic root of 13420552 is about 237.6421427966.

Adding to 13420552 its reverse (25502431), we get a palindrome (38922983).

The spelling of 13420552 in words is "thirteen million, four hundred twenty thousand, five hundred fifty-two".

Divisors: 1 2 4 8 1677569 3355138 6710276 13420552