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1880065972 = 2217157117599
BaseRepresentation
bin111000000001111…
…1000011110110100
311212000200020200001
41300003320132310
512322244102342
6510320201044
764406203621
oct16003703664
94760606601
101880065972
11885280434
12445769184
1323c674495
1413b999348
15b00c18b7
hex700f87b4

1880065972 has 24 divisors (see below), whose sum is σ = 3486067200. Its totient is φ = 884123520.

The previous prime is 1880065949. The next prime is 1880065973. The reversal of 1880065972 is 2795600881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880065973) 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, 98029 + ... + 115627.

It is an arithmetic number, because the mean of its divisors is an integer number (145252800).

Almost surely, 21880065972 is an apocalyptic number.

It is an amenable number.

1880065972 is a deficient number, since it is larger than the sum of its proper divisors (1606001228).

1880065972 is a wasteful number, since it uses less digits than its factorization.

1880065972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19191 (or 19189 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1880065972 is about 43359.7275360443. The cubic root of 1880065972 is about 1234.2155950388.

The spelling of 1880065972 in words is "one billion, eight hundred eighty million, sixty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 1571 3142 6284 17599 26707 35198 53414 70396 106828 299183 598366 1196732 27648029 55296058 110592116 470016493 940032986 1880065972