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2145435045 = 351371831867
BaseRepresentation
bin111111111100000…
…1011110110100101
312112112000101121020
41333320023312211
513343212410140
6552520041353
7104110616445
oct17770136645
95475011536
102145435045
11a01051116
124ba603259
132826384c0
14164d16125
15c853e6d0
hex7fe0bda5

2145435045 has 64 divisors (see below), whose sum is σ = 3796015104. Its totient is φ = 1028240640.

The previous prime is 2145435043. The next prime is 2145435079. The reversal of 2145435045 is 5405345412.

It is not a de Polignac number, because 2145435045 - 21 = 2145435043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145434997 and 2145435015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145435043) 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, 1148202 + ... + 1150068.

It is an arithmetic number, because the mean of its divisors is an integer number (59312736).

Almost surely, 22145435045 is an apocalyptic number.

It is an amenable number.

2145435045 is a deficient number, since it is larger than the sum of its proper divisors (1650580059).

2145435045 is a wasteful number, since it uses less digits than its factorization.

2145435045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042.

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 2145435045 is about 46318.8411448300. The cubic root of 2145435045 is about 1289.7487732631.

The spelling of 2145435045 in words is "two billion, one hundred forty-five million, four hundred thirty-five thousand, forty-five".

Divisors: 1 3 5 13 15 39 65 71 83 195 213 249 355 415 923 1065 1079 1245 1867 2769 3237 4615 5395 5601 5893 9335 13845 16185 17679 24271 28005 29465 72813 76609 88395 121355 132557 154961 229827 364065 383045 397671 464883 662785 774805 1149135 1723241 1988355 2014493 2324415 5169723 6043479 8616205 10072465 11002231 25848615 30217395 33006693 55011155 143029003 165033465 429087009 715145015 2145435045