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38361612487 = 1147491151121
BaseRepresentation
bin100011101110100001…
…111100000011000111
310200000111010211100111
4203232201330003013
51112031033044422
625342330253451
72525431216552
oct435641740307
9120014124314
1038361612487
11152a6148280
127527287287
1338047c8bb3
141bdcb63699
15ee7c53a77
hex8ee87c0c7

38361612487 has 16 divisors (see below), whose sum is σ = 42826765824. Its totient is φ = 34062448000.

The previous prime is 38361612481. The next prime is 38361612511. The reversal of 38361612487 is 78421616383.

38361612487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38361612487 - 23 = 38361612479 is a prime.

It is a super-2 number, since 2×383616124872 (a number of 22 digits) contains 22 as substring.

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 38361612487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38361612481) 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, 178287 + ... + 329407.

It is an arithmetic number, because the mean of its divisors is an integer number (2676672864).

Almost surely, 238361612487 is an apocalyptic number.

38361612487 is a deficient number, since it is larger than the sum of its proper divisors (4465153337).

38361612487 is a wasteful number, since it uses less digits than its factorization.

38361612487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151670.

The product of its digits is 1161216, while the sum is 49.

The spelling of 38361612487 in words is "thirty-eight billion, three hundred sixty-one million, six hundred twelve thousand, four hundred eighty-seven".

Divisors: 1 11 47 491 517 5401 23077 151121 253847 1662331 7102687 74200411 78129557 816204521 3487419317 38361612487