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118013970 = 23513130029
BaseRepresentation
bin1110000100011…
…00000000010010
322020001201201210
413002030000102
5220202421340
615413240550
72632050024
oct702140022
9266051653
10118013970
1160685708
1233633156
131b5acc69
1411960014
15a562180
hex708c012

118013970 has 32 divisors (see below), whose sum is σ = 285405120. Its totient is φ = 31229120.

The previous prime is 118013941. The next prime is 118013977. The reversal of 118013970 is 79310811.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118013977) 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, 11085 + ... + 18944.

It is an arithmetic number, because the mean of its divisors is an integer number (8918910).

Almost surely, 2118013970 is an apocalyptic number.

118013970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118013970 is an abundant number, since it is smaller than the sum of its proper divisors (167391150).

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

118013970 is a wasteful number, since it uses less digits than its factorization.

118013970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30170.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 118013970 is about 10863.4234935401. The cubic root of 118013970 is about 490.5061686055.

The spelling of 118013970 in words is "one hundred eighteen million, thirteen thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 30029 60058 90087 150145 180174 300290 450435 900870 3933799 7867598 11801397 19668995 23602794 39337990 59006985 118013970