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235530980 = 22529340193
BaseRepresentation
bin11100000100111…
…10101011100100
3121102012012202122
432002132223210
5440243442410
635212125112
75556660146
oct1602365344
9542165678
10235530980
11110a50a03
1266a66798
1339a47959
14233d0c96
1515a26e55
hexe09eae4

235530980 has 24 divisors (see below), whose sum is σ = 496315512. Its totient is φ = 93888512.

The previous prime is 235530979. The next prime is 235531003. The reversal of 235530980 is 89035532.

235530980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44649124 + 190881856 = 6682^2 + 13816^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 235530980.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14237 + ... + 25956.

It is an arithmetic number, because the mean of its divisors is an integer number (20679813).

Almost surely, 2235530980 is an apocalyptic number.

235530980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235530980 is an abundant number, since it is smaller than the sum of its proper divisors (260784532).

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

235530980 is a wasteful number, since it uses less digits than its factorization.

235530980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40495 (or 40493 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 235530980 is about 15347.0186029730. The cubic root of 235530980 is about 617.5650070612.

The spelling of 235530980 in words is "two hundred thirty-five million, five hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 293 586 1172 1465 2930 5860 40193 80386 160772 200965 401930 803860 11776549 23553098 47106196 58882745 117765490 235530980