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2135306145 = 357101227887
BaseRepresentation
bin111111101000110…
…0010111110100001
312111210221210100210
41333101202332201
513333114244040
6551515004333
7103625542230
oct17721427641
95453853323
102135306145
119a6363125
124b71396a9
1328050007b
1416383ab17
15c76dd480
hex7f462fa1

2135306145 has 64 divisors (see below), whose sum is σ = 3965054976. Its totient is φ = 961132800.

The previous prime is 2135306143. The next prime is 2135306161. The reversal of 2135306145 is 5416035312.

It is not a de Polignac number, because 2135306145 - 21 = 2135306143 is a prime.

It is a super-2 number, since 2×21353061452 = 9119064665749522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2135306143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2406892 + ... + 2407778.

It is an arithmetic number, because the mean of its divisors is an integer number (61953984).

Almost surely, 22135306145 is an apocalyptic number.

It is an amenable number.

2135306145 is a deficient number, since it is larger than the sum of its proper divisors (1829748831).

2135306145 is a wasteful number, since it uses less digits than its factorization.

2135306145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2135306145 is about 46209.3729128626. The cubic root of 2135306145 is about 1287.7158757007.

The spelling of 2135306145 in words is "two billion, one hundred thirty-five million, three hundred six thousand, one hundred forty-five".

Divisors: 1 3 5 7 15 21 35 101 105 227 303 505 681 707 887 1135 1515 1589 2121 2661 3405 3535 4435 4767 6209 7945 10605 13305 18627 22927 23835 31045 68781 89587 93135 114635 160489 201349 268761 343905 447935 481467 604047 627109 802445 1006745 1343805 1409443 1881327 2407335 3020235 3135545 4228329 7047215 9406635 20336249 21141645 61008747 101681245 142353743 305043735 427061229 711768715 2135306145