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39870053 = 3747101227
BaseRepresentation
bin1001100000010…
…1111001100101
32210000121102122
42120011321211
540201320203
63542315325
7662614136
oct230057145
983017378
1039870053
1120561a63
1211428b45
13834c662
14541bc8d
153778538
hex2605e65

39870053 has 16 divisors (see below), whose sum is σ = 42418944. Its totient is φ = 37425600.

The previous prime is 39870043. The next prime is 39870071. The reversal of 39870053 is 35007893.

It is a cyclic number.

It is not a de Polignac number, because 39870053 - 220 = 38821477 is a prime.

It is a super-2 number, since 2×398700532 = 3179242252445618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39869995 and 39870022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39870013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175526 + ... + 175752.

It is an arithmetic number, because the mean of its divisors is an integer number (2651184).

Almost surely, 239870053 is an apocalyptic number.

It is an amenable number.

39870053 is a deficient number, since it is larger than the sum of its proper divisors (2548891).

39870053 is a wasteful number, since it uses less digits than its factorization.

39870053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 39870053 is about 6314.2737507967. The cubic root of 39870053 is about 341.6244438272.

The spelling of 39870053 in words is "thirty-nine million, eight hundred seventy thousand, fifty-three".

Divisors: 1 37 47 101 227 1739 3737 4747 8399 10669 22927 175639 394753 848299 1077569 39870053