Search a number
-
+
38370456421 = 1159223265123
BaseRepresentation
bin100011101111000011…
…101011001101100101
310200001002210010221121
4203233003223031211
51112040314101141
625343244013541
72525566332613
oct435703531545
9120032703847
1038370456421
1115300138910
12752a2312b1
1338065a44ab
141bdddc66b3
15ee88ee1d1
hex8ef0eb365

38370456421 has 16 divisors (see below), whose sum is σ = 42759198720. Its totient is φ = 34137108720.

The previous prime is 38370456413. The next prime is 38370456437. The reversal of 38370456421 is 12465407383.

It is not a de Polignac number, because 38370456421 - 23 = 38370456413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38370456461) 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, 12166 + ... + 277288.

It is an arithmetic number, because the mean of its divisors is an integer number (2672449920).

Almost surely, 238370456421 is an apocalyptic number.

It is an amenable number.

38370456421 is a deficient number, since it is larger than the sum of its proper divisors (4388742299).

38370456421 is a wasteful number, since it uses less digits than its factorization.

38370456421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265416.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 38370456421 in words is "thirty-eight billion, three hundred seventy million, four hundred fifty-six thousand, four hundred twenty-one".

Divisors: 1 11 59 223 649 2453 13157 144727 265123 2916353 15642257 59122429 172064827 650346719 3488223311 38370456421