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23065203550 = 25210713731469
BaseRepresentation
bin10101011110110010…
…110001001101011110
32012112110020202001011
4111132302301031132
5334214143003200
614332423205434
71444401665254
oct253662611536
965473222034
1023065203550
1198667848a4
1245785a687a
13223773b74c
14118b4225d4
158eedde5ba
hex55ecb135e

23065203550 has 48 divisors (see below), whose sum is σ = 43619685840. Its totient is φ = 9072853760.

The previous prime is 23065203547. The next prime is 23065203559. The reversal of 23065203550 is 5530256032.

It is a super-2 number, since 2×230652035502 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23065203559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717216 + ... + 748684.

It is an arithmetic number, because the mean of its divisors is an integer number (908743455).

Almost surely, 223065203550 is an apocalyptic number.

23065203550 is a deficient number, since it is larger than the sum of its proper divisors (20554482290).

23065203550 is a wasteful number, since it uses less digits than its factorization.

23065203550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31725 (or 31720 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 23065203550 its reverse (5530256032), we get a palindrome (28595459582).

The spelling of 23065203550 in words is "twenty-three billion, sixty-five million, two hundred three thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 107 137 214 274 535 685 1070 1370 2675 3425 5350 6850 14659 29318 31469 62938 73295 146590 157345 314690 366475 732950 786725 1573450 3367183 4311253 6734366 8622506 16835915 21556265 33671830 43112530 84179575 107781325 168359150 215562650 461304071 922608142 2306520355 4613040710 11532601775 23065203550