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1420748748 = 22344385027
BaseRepresentation
bin101010010101110…
…1110011111001100
310200000101111220000
41110223232133030
510402202424443
6352551324300
750131110426
oct12453563714
93600344800
101420748748
11669a80621
12337980690
13198464943
14d6993816
1584ae28d3
hex54aee7cc

1420748748 has 30 divisors (see below), whose sum is σ = 3714118716. Its totient is φ = 473582808.

The previous prime is 1420748737. The next prime is 1420748779. The reversal of 1420748748 is 8478470241.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2192190 + ... + 2192837.

Almost surely, 21420748748 is an apocalyptic number.

1420748748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1420748748 is an abundant number, since it is smaller than the sum of its proper divisors (2293369968).

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

1420748748 is a wasteful number, since it uses less digits than its factorization.

1420748748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385043 (or 4385032 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The square root of 1420748748 is about 37692.8209079660. The cubic root of 1420748748 is about 1124.1883852800.

The spelling of 1420748748 in words is "one billion, four hundred twenty million, seven hundred forty-eight thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 4385027 8770054 13155081 17540108 26310162 39465243 52620324 78930486 118395729 157860972 236791458 355187187 473582916 710374374 1420748748