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30237065 = 5232411091
BaseRepresentation
bin111001101011…
…0000110001001
32002220012110022
41303112012021
530220041230
63000030225
7515003465
oct163260611
962805408
1030237065
1116082611
12a162375
136358b71
1440314a5
1529c41e5
hex1cd6189

30237065 has 16 divisors (see below), whose sum is σ = 38054016. Its totient is φ = 23020800.

The previous prime is 30237061. The next prime is 30237071. The reversal of 30237065 is 56073203.

It is not a de Polignac number, because 30237065 - 22 = 30237061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30237061) 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, 27170 + ... + 28260.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 230237065 is an apocalyptic number.

It is an amenable number.

30237065 is a deficient number, since it is larger than the sum of its proper divisors (7816951).

30237065 is a wasteful number, since it uses less digits than its factorization.

30237065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 30237065 is about 5498.8239651766. The cubic root of 30237065 is about 311.5395664396.

The spelling of 30237065 in words is "thirty million, two hundred thirty-seven thousand, sixty-five".

Divisors: 1 5 23 115 241 1091 1205 5455 5543 25093 27715 125465 262931 1314655 6047413 30237065