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2145087936 = 26326161051
BaseRepresentation
bin111111111011011…
…0111000111000000
312112111100202110100
41333312313013000
513343120303221
6552504402400
7104104642455
oct17766670700
95474322410
102145087936
11a00934352
124ba476400
13282546504
14164c6582c
15c84c1926
hex7fdb71c0

2145087936 has 84 divisors (see below), whose sum is σ = 6249404824. Its totient is φ = 703296000.

The previous prime is 2145087929. The next prime is 2145087937. The reversal of 2145087936 is 6397805412.

2145087936 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

2145087936 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2145087891 and 2145087900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145087937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4611 + ... + 65661.

It is a 1-persistent number, because it is pandigital, but 2⋅2145087936 = 4290175872 is not.

Almost surely, 22145087936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145087936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124702412).

2145087936 is an abundant number, since it is smaller than the sum of its proper divisors (4104316888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145087936 is a wasteful number, since it uses less digits than its factorization.

2145087936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61130 (or 61117 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2145087936 is about 46315.0940407120. The cubic root of 2145087936 is about 1289.6792135478.

The spelling of 2145087936 in words is "two billion, one hundred forty-five million, eighty-seven thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 144 183 192 244 288 366 488 549 576 732 976 1098 1464 1952 2196 2928 3904 4392 5856 8784 11712 17568 35136 61051 122102 183153 244204 366306 488408 549459 732612 976816 1098918 1465224 1953632 2197836 2930448 3724111 3907264 4395672 5860896 7448222 8791344 11172333 11721792 14896444 17582688 22344666 29792888 33516999 35165376 44689332 59585776 67033998 89378664 119171552 134067996 178757328 238343104 268135992 357514656 536271984 715029312 1072543968 2145087936