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144320870 = 2514432087
BaseRepresentation
bin10001001101000…
…10100101100110
3101001120021000102
420212202211212
5243421231440
622153144102
73401464361
oct1046424546
9331507012
10144320870
1174513451
12403bb032
1323b90c85
141524b0d8
15ca0bb15
hex89a2966

144320870 has 8 divisors (see below), whose sum is σ = 259777584. Its totient is φ = 57728344.

The previous prime is 144320863. The next prime is 144320951. The reversal of 144320870 is 78023441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7216034 + ... + 7216053.

It is an arithmetic number, because the mean of its divisors is an integer number (32472198).

Almost surely, 2144320870 is an apocalyptic number.

144320870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144320870 is a deficient number, since it is larger than the sum of its proper divisors (115456714).

144320870 is a wasteful number, since it uses less digits than its factorization.

144320870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14432094.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 144320870 is about 12013.3621438796. The cubic root of 144320870 is about 524.5373035955.

The spelling of 144320870 in words is "one hundred forty-four million, three hundred twenty thousand, eight hundred seventy".

Divisors: 1 2 5 10 14432087 28864174 72160435 144320870