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39970988684 = 22112693377069
BaseRepresentation
bin100101001110011101…
…001110001010001100
310211011122110121110022
4211032131032022030
51123330033114214
630210141001312
72613342540464
oct451635161214
9124148417408
1039970988684
1115a51643450
1278b6253238
133a000655c3
141d127b8ba4
15108e1a5d8e
hex94e74e28c

39970988684 has 24 divisors (see below), whose sum is σ = 76591947600. Its totient is φ = 18101084480.

The previous prime is 39970988677. The next prime is 39970988689. The reversal of 39970988684 is 48688907993.

It is not an unprimeable number, because it can be changed into a prime (39970988689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676699 + ... + 1700370.

It is an arithmetic number, because the mean of its divisors is an integer number (3191331150).

Almost surely, 239970988684 is an apocalyptic number.

It is an amenable number.

39970988684 is a deficient number, since it is larger than the sum of its proper divisors (36620958916).

39970988684 is a wasteful number, since it uses less digits than its factorization.

39970988684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377353 (or 3377351 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 71.

The spelling of 39970988684 in words is "thirty-nine billion, nine hundred seventy million, nine hundred eighty-eight thousand, six hundred eighty-four".

Divisors: 1 2 4 11 22 44 269 538 1076 2959 5918 11836 3377069 6754138 13508276 37147759 74295518 148591036 908431561 1816863122 3633726244 9992747171 19985494342 39970988684