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38120553 = 3225716481
BaseRepresentation
bin1001000101101…
…0110001101001
32122201201120100
42101122301221
534224324203
63441020013
7642006432
oct221326151
978651510
1038120553
111a577599
1210924609
137b89253
1450c4489
15352eea3
hex245ac69

38120553 has 12 divisors (see below), whose sum is σ = 55280628. Its totient is φ = 25313280.

The previous prime is 38120543. The next prime is 38120557. The reversal of 38120553 is 35502183.

It can be written as a sum of positive squares in 2 ways, for example, as 29192409 + 8928144 = 5403^2 + 2988^2 .

It is not a de Polignac number, because 38120553 - 217 = 37989481 is a prime.

It is a super-2 number, since 2×381205532 = 2906353122051618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38120557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5928 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (4606719).

Almost surely, 238120553 is an apocalyptic number.

It is an amenable number.

38120553 is a deficient number, since it is larger than the sum of its proper divisors (17160075).

38120553 is a wasteful number, since it uses less digits than its factorization.

38120553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16744 (or 16741 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 38120553 is about 6174.1843995786. The cubic root of 38120553 is about 336.5526883828.

The spelling of 38120553 in words is "thirty-eight million, one hundred twenty thousand, five hundred fifty-three".

Divisors: 1 3 9 257 771 2313 16481 49443 148329 4235617 12706851 38120553