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190066915637 = 3183643114883
BaseRepresentation
bin1011000100000011011…
…1101111100100110101
3200011121002102201100222
42301000313233210311
511103224112300022
6223152053344125
716506015061244
oct2610067574465
9604532381328
10190066915637
1173674900975
1230a05038045
1314c00460671
1492b0bba95b
154e263d3242
hex2c40def935

190066915637 has 16 divisors (see below), whose sum is σ = 198872475648. Its totient is φ = 181435440240.

The previous prime is 190066915603. The next prime is 190066915657. The reversal of 190066915637 is 736519660091.

It is a cyclic number.

It is not a de Polignac number, because 190066915637 - 210 = 190066914613 is a prime.

It is a super-2 number, since 2×1900669156372 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190066915657) 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, 1596998 + ... + 1711880.

It is an arithmetic number, because the mean of its divisors is an integer number (12429529728).

Almost surely, 2190066915637 is an apocalyptic number.

It is an amenable number.

190066915637 is a deficient number, since it is larger than the sum of its proper divisors (8805560011).

190066915637 is a wasteful number, since it uses less digits than its factorization.

190066915637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115640.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 190066915637 in words is "one hundred ninety billion, sixty-six million, nine hundred fifteen thousand, six hundred thirty-seven".

Divisors: 1 31 83 643 2573 19933 53369 114883 1654439 3561373 9535289 73869769 295593959 2289962839 6131190827 190066915637