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145716020 = 2257399859
BaseRepresentation
bin10001010111101…
…11001100110100
3101011012010210122
420223313030310
5244300403040
622243111112
73416365022
oct1053671464
9334163718
10145716020
117528666a
1240972498
132425bcc8
14154d1712
15cbd51b5
hex8af7334

145716020 has 24 divisors (see below), whose sum is σ = 306448800. Its totient is φ = 58201632.

The previous prime is 145715963. The next prime is 145716037. The reversal of 145716020 is 20617541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9851 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (12768700).

Almost surely, 2145716020 is an apocalyptic number.

145716020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145716020 is an abundant number, since it is smaller than the sum of its proper divisors (160732780).

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

145716020 is a wasteful number, since it uses less digits than its factorization.

145716020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10607 (or 10605 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 145716020 is about 12071.2890778077. The cubic root of 145716020 is about 526.2221203797. Note that the first 3 decimals are identical.

The spelling of 145716020 in words is "one hundred forty-five million, seven hundred sixteen thousand, twenty".

Divisors: 1 2 4 5 10 20 739 1478 2956 3695 7390 9859 14780 19718 39436 49295 98590 197180 7285801 14571602 29143204 36429005 72858010 145716020