Search a number
-
+
190402325687 = 771383103271
BaseRepresentation
bin1011000101010011011…
…1001110110010110111
3200012110110120022110102
42301110313032302313
511104420443410222
6223245234344315
716520230031150
oct2612467166267
9605413508412
10190402325687
1173827170462
1230a9942b09b
1314c54aa8a52
14930356a927
154e45a88d92
hex2c54dcecb7

190402325687 has 8 divisors (see below), whose sum is σ = 220667484672. Its totient is φ = 160903373400.

The previous prime is 190402325681. The next prime is 190402325699. The reversal of 190402325687 is 786523204091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190402325687 - 24 = 190402325671 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 (190402325681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191551139 + ... + 191552132.

It is an arithmetic number, because the mean of its divisors is an integer number (27583435584).

It is a 1-persistent number, because it is pandigital, but 2⋅190402325687 = 380804651374 is not.

Almost surely, 2190402325687 is an apocalyptic number.

190402325687 is a deficient number, since it is larger than the sum of its proper divisors (30265158985).

190402325687 is an equidigital number, since it uses as much as digits as its factorization.

190402325687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383103349.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 190402325687 in words is "one hundred ninety billion, four hundred two million, three hundred twenty-five thousand, six hundred eighty-seven".

Divisors: 1 7 71 497 383103271 2681722897 27200332241 190402325687