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146985580 = 22571049897
BaseRepresentation
bin10001100001011…
…01001001101100
3101020120122022101
420300231021230
5300112014310
622330224444
73433233250
oct1060551154
9336518271
10146985580
1175a73495
1241285124
13245b4b21
1415742260
15cd8643a
hex8c2d26c

146985580 has 24 divisors (see below), whose sum is σ = 352765728. Its totient is φ = 50395008.

The previous prime is 146985563. The next prime is 146985581. The reversal of 146985580 is 85589641.

146985580 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1469855804 (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146985580.

It is not an unprimeable number, because it can be changed into a prime (146985581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524809 + ... + 525088.

It is an arithmetic number, because the mean of its divisors is an integer number (14698572).

Almost surely, 2146985580 is an apocalyptic number.

146985580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146985580 is an abundant number, since it is smaller than the sum of its proper divisors (205780148).

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

146985580 is a wasteful number, since it uses less digits than its factorization.

146985580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049913 (or 1049911 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 146985580 is about 12123.7609676206. The cubic root of 146985580 is about 527.7459512069.

The spelling of 146985580 in words is "one hundred forty-six million, nine hundred eighty-five thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1049897 2099794 4199588 5249485 7349279 10498970 14698558 20997940 29397116 36746395 73492790 146985580