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10135233621 = 341737198929
BaseRepresentation
bin10010111000001101…
…10110010001010101
3222011100020012210000
421130012312101111
5131224104433441
64353413121513
7506106031032
oct113406662125
928140205700
1010135233621
114331091037
121b6a329299
13c56a19176
146c20c6389
153e4bc22b6
hex25c1b6455

10135233621 has 40 divisors (see below), whose sum is σ = 16464242520. Its totient is φ = 6187456512.

The previous prime is 10135233617. The next prime is 10135233623. The reversal of 10135233621 is 12633253101.

10135233621 is a `hidden beast` number, since 1 + 0 + 1 + 3 + 5 + 2 + 33 + 621 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7141940100 + 2993293521 = 84510^2 + 54711^2 .

It is not a de Polignac number, because 10135233621 - 22 = 10135233617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10135233623) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48516 + ... + 150413.

It is an arithmetic number, because the mean of its divisors is an integer number (411606063).

Almost surely, 210135233621 is an apocalyptic number.

It is an amenable number.

10135233621 is a deficient number, since it is larger than the sum of its proper divisors (6329008899).

10135233621 is a wasteful number, since it uses less digits than its factorization.

10135233621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198995 (or 198986 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 10135233621 its reverse (12633253101), we get a palindrome (22768486722).

The spelling of 10135233621 in words is "ten billion, one hundred thirty-five million, two hundred thirty-three thousand, six hundred twenty-one".

Divisors: 1 3 9 17 27 37 51 81 111 153 333 459 629 999 1377 1887 2997 5661 16983 50949 198929 596787 1790361 3381793 5371083 7360373 10145379 16113249 22081119 30436137 66243357 91308411 125126341 198730071 273925233 375379023 596190213 1126137069 3378411207 10135233621