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245690632 = 23115979599
BaseRepresentation
bin11101010010011…
…11000100001000
3122010022101012001
432221033010020
51000344100012
640214000344
76042223135
oct1651170410
9563271161
10245690632
11116760010
126a3460b4
133bb94095
14248b758c
1516882357
hexea4f108

245690632 has 64 divisors (see below), whose sum is σ = 518400000. Its totient is φ = 108214080.

The previous prime is 245690629. The next prime is 245690633. The reversal of 245690632 is 236096542.

It is a junction number, because it is equal to n+sod(n) for n = 245690591 and 245690600.

It is not an unprimeable number, because it can be changed into a prime (245690633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409869 + ... + 410467.

It is an arithmetic number, because the mean of its divisors is an integer number (8100000).

Almost surely, 2245690632 is an apocalyptic number.

245690632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245690632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259200000).

245690632 is an abundant number, since it is smaller than the sum of its proper divisors (272709368).

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

245690632 is a wasteful number, since it uses less digits than its factorization.

245690632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 245690632 is about 15674.5217470901. The cubic root of 245690632 is about 626.3198833307.

The spelling of 245690632 in words is "two hundred forty-five million, six hundred ninety thousand, six hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 59 79 88 118 158 236 316 472 599 632 649 869 1198 1298 1738 2396 2596 3476 4661 4792 5192 6589 6952 9322 13178 18644 26356 35341 37288 47321 51271 52712 70682 94642 102542 141364 189284 205084 282728 378568 388751 410168 520531 777502 1041062 1555004 2082124 2791939 3110008 4164248 5583878 11167756 22335512 30711329 61422658 122845316 245690632