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1274044420 = 2251143134677
BaseRepresentation
bin100101111110000…
…0110000000000100
310021210100011101101
41023330012000010
510102123410140
6330231105444
743400125135
oct11374060004
93253304341
101274044420
115a418a480
122b6812284
13173c4ab4c
14c12c5c8c
1576cb499a
hex4bf06004

1274044420 has 48 divisors (see below), whose sum is σ = 2986619328. Its totient is φ = 452511360.

The previous prime is 1274044381. The next prime is 1274044427. The reversal of 1274044420 is 244404721.

It is not an unprimeable number, because it can be changed into a prime (1274044427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57879 + ... + 76798.

It is an arithmetic number, because the mean of its divisors is an integer number (62221236).

Almost surely, 21274044420 is an apocalyptic number.

1274044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1274044420 is an abundant number, since it is smaller than the sum of its proper divisors (1712574908).

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

1274044420 is a wasteful number, since it uses less digits than its factorization.

1274044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134740 (or 134738 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 1274044420 is about 35693.7588382059. The cubic root of 1274044420 is about 1084.0804769979.

The spelling of 1274044420 in words is "one billion, two hundred seventy-four million, forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 43 44 55 86 110 172 215 220 430 473 860 946 1892 2365 4730 9460 134677 269354 538708 673385 1346770 1481447 2693540 2962894 5791111 5925788 7407235 11582222 14814470 23164444 28955555 29628940 57911110 63702221 115822220 127404442 254808884 318511105 637022210 1274044420