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190268765 = 52343109353
BaseRepresentation
bin10110101011101…
…00010101011101
3111021000122200022
423111310111131
5342202100030
630514041525
74500154301
oct1325642535
9437018608
10190268765
1198446815
12538792a5
133055ab8b
141b3abd01
1511a85de5
hexb57455d

190268765 has 32 divisors (see below), whose sum is σ = 246723840. Its totient is φ = 140507136.

The previous prime is 190268761. The next prime is 190268783. The reversal of 190268765 is 567862091.

It is a cyclic number.

It is not a de Polignac number, because 190268765 - 22 = 190268761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190268761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538829 + ... + 539181.

It is an arithmetic number, because the mean of its divisors is an integer number (7710120).

Almost surely, 2190268765 is an apocalyptic number.

It is an amenable number.

190268765 is a deficient number, since it is larger than the sum of its proper divisors (56455075).

190268765 is a wasteful number, since it uses less digits than its factorization.

190268765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 190268765 is about 13793.7944380798. The cubic root of 190268765 is about 575.1606507634.

The spelling of 190268765 in words is "one hundred ninety million, two hundred sixty-eight thousand, seven hundred sixty-five".

Divisors: 1 5 23 43 109 115 215 353 545 989 1765 2507 4687 4945 8119 12535 15179 23435 38477 40595 75895 107801 192385 349117 539005 884971 1654511 1745585 4424855 8272555 38053753 190268765