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115207430 = 25132930559
BaseRepresentation
bin1101101110111…
…10110100000110
322000210010212212
412313132310012
5213443114210
615233143422
72566150502
oct667366406
9260703785
10115207430
115a039058
12326bab72
131ab396a0
141142d302
15a1aa805
hex6dded06

115207430 has 32 divisors (see below), whose sum is σ = 231033600. Its totient is φ = 41069952.

The previous prime is 115207429. The next prime is 115207513. The reversal of 115207430 is 34702511.

It is a junction number, because it is equal to n+sod(n) for n = 115207396 and 115207405.

It is a congruent number.

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, 11510 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (7219800).

Almost surely, 2115207430 is an apocalyptic number.

115207430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115207430 is an abundant number, since it is smaller than the sum of its proper divisors (115826170).

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

115207430 is a wasteful number, since it uses less digits than its factorization.

115207430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30608.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 115207430 is about 10733.4724111072. The cubic root of 115207430 is about 486.5866202452.

Adding to 115207430 its reverse (34702511), we get a palindrome (149909941).

The spelling of 115207430 in words is "one hundred fifteen million, two hundred seven thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3770 30559 61118 152795 305590 397267 794534 886211 1772422 1986335 3972670 4431055 8862110 11520743 23041486 57603715 115207430