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3145508620 = 225315073401
BaseRepresentation
bin1011101101111100…
…1010011100001100
322010012211101122021
42323133022130030
522420222233440
61240043055524
7140643245032
oct27337123414
98105741567
103145508620
111374615201
127395115a4
133b18a0007
1421ba82552
1513623784a
hexbb7ca70c

3145508620 has 24 divisors (see below), whose sum is σ = 6818652288. Its totient is φ = 1217616000.

The previous prime is 3145508617. The next prime is 3145508647. The reversal of 3145508620 is 268055413.

It is a super-3 number, since 3×31455086203 (a number of 29 digits) contains 333 as substring.

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, 2536081 + ... + 2537320.

It is an arithmetic number, because the mean of its divisors is an integer number (284110512).

Almost surely, 23145508620 is an apocalyptic number.

It is an amenable number.

3145508620 is an abundant number, since it is smaller than the sum of its proper divisors (3673143668).

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

3145508620 is a wasteful number, since it uses less digits than its factorization.

3145508620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073441 (or 5073439 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 3145508620 is about 56084.8341354416. The cubic root of 3145508620 is about 1465.2001683415.

The spelling of 3145508620 in words is "three billion, one hundred forty-five million, five hundred eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 5073401 10146802 20293604 25367005 50734010 101468020 157275431 314550862 629101724 786377155 1572754310 3145508620