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1020702012 = 223117732591
BaseRepresentation
bin111100110101101…
…010110100111100
32122010122000221020
4330311222310330
54042244431022
6245141104140
734202552421
oct7465526474
92563560836
101020702012
11484183590
122459b8050
13133607cb5
14997b9d48
155e92035c
hex3cd6ad3c

1020702012 has 24 divisors (see below), whose sum is σ = 2598150912. Its totient is φ = 309303600.

The previous prime is 1020701999. The next prime is 1020702013. The reversal of 1020702012 is 2102070201.

It is a junction number, because it is equal to n+sod(n) for n = 1020701982 and 1020702000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020702013) 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, 3866164 + ... + 3866427.

It is an arithmetic number, because the mean of its divisors is an integer number (108256288).

Almost surely, 21020702012 is an apocalyptic number.

1020702012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020702012 is an abundant number, since it is smaller than the sum of its proper divisors (1577448900).

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

1020702012 is a wasteful number, since it uses less digits than its factorization.

1020702012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7732609 (or 7732607 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1020702012 is about 31948.4273791371. The cubic root of 1020702012 is about 1006.8535916400.

Adding to 1020702012 its reverse (2102070201), we get a palindrome (3122772213).

The spelling of 1020702012 in words is "one billion, twenty million, seven hundred two thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 7732591 15465182 23197773 30930364 46395546 85058501 92791092 170117002 255175503 340234004 510351006 1020702012