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1376970228 = 2232291318937
BaseRepresentation
bin101001000010010…
…1110010111110100
310112222000100001100
41102010232113310
510310001021403
6344345130100
746060024314
oct12204562764
93488010040
101376970228
1164729a127
12325189930
1318c3772aa
14d0c39444
1580d462a3
hex5212e5f4

1376970228 has 36 divisors (see below), whose sum is σ = 3600700740. Its totient is φ = 443162496.

The previous prime is 1376970197. The next prime is 1376970247. The reversal of 1376970228 is 8220796731.

It can be written as a sum of positive squares in 2 ways, for example, as 1096139664 + 280830564 = 33108^2 + 16758^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 658425 + ... + 660512.

It is an arithmetic number, because the mean of its divisors is an integer number (100019465).

Almost surely, 21376970228 is an apocalyptic number.

1376970228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1376970228 is an abundant number, since it is smaller than the sum of its proper divisors (2223730512).

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

1376970228 is a wasteful number, since it uses less digits than its factorization.

1376970228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318976 (or 1318971 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1376970228 is about 37107.5494744668. The cubic root of 1376970228 is about 1112.5209127576.

The spelling of 1376970228 in words is "one billion, three hundred seventy-six million, nine hundred seventy thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 1044 1318937 2637874 3956811 5275748 7913622 11870433 15827244 23740866 38249173 47481732 76498346 114747519 152996692 229495038 344242557 458990076 688485114 1376970228