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1230230442 = 23756352027
BaseRepresentation
bin100100101010011…
…1101001110101010
310011201220011220110
41021110331032222
510004414333232
6322024035150
742325533450
oct11124751652
93151804813
101230230442
11581484381
122a4002ab6
13167b4a30c
14b955c9d0
157300cacc
hex4953d3aa

1230230442 has 32 divisors (see below), whose sum is σ = 2817004032. Its totient is φ = 350863344.

The previous prime is 1230230429. The next prime is 1230230503. The reversal of 1230230442 is 2440320321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368 + ... + 49659.

It is an arithmetic number, because the mean of its divisors is an integer number (88031376).

Almost surely, 21230230442 is an apocalyptic number.

1230230442 is an abundant number, since it is smaller than the sum of its proper divisors (1586773590).

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

1230230442 is a wasteful number, since it uses less digits than its factorization.

1230230442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52602.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1230230442 is about 35074.6410102798. The cubic root of 1230230442 is about 1071.5081774554.

Adding to 1230230442 its reverse (2440320321), we get a palindrome (3670550763).

The spelling of 1230230442 in words is "one billion, two hundred thirty million, two hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 563 1126 1689 3378 3941 7882 11823 23646 52027 104054 156081 312162 364189 728378 1092567 2185134 29291201 58582402 87873603 175747206 205038407 410076814 615115221 1230230442