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1230252452 = 2211132150791
BaseRepresentation
bin100100101010100…
…0010100110100100
310011201221022002122
41021111002212210
510004421034302
6322024325112
742325654562
oct11125024644
93151838078
101230252452
11581499970
122a4013798
13167b57340
14b9566a32
15730143a2
hex495429a4

1230252452 has 24 divisors (see below), whose sum is σ = 2529331392. Its totient is φ = 516189600.

The previous prime is 1230252407. The next prime is 1230252461. The reversal of 1230252452 is 2542520321.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 1074824 + ... + 1075967.

It is an arithmetic number, because the mean of its divisors is an integer number (105388808).

Almost surely, 21230252452 is an apocalyptic number.

It is an amenable number.

1230252452 is an abundant number, since it is smaller than the sum of its proper divisors (1299078940).

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

1230252452 is a wasteful number, since it uses less digits than its factorization.

1230252452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150819 (or 2150817 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1230252452 is about 35074.9547683244. The cubic root of 1230252452 is about 1071.5145675195.

Adding to 1230252452 its reverse (2542520321), we get a palindrome (3772772773).

The spelling of 1230252452 in words is "one billion, two hundred thirty million, two hundred fifty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 2150791 4301582 8603164 23658701 27960283 47317402 55920566 94634804 111841132 307563113 615126226 1230252452