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1897340076 = 2232194795791
BaseRepresentation
bin111000100010111…
…0001110010101100
311220020011212021200
41301011301302230
512341204340301
6512134325500
765006060502
oct16105616254
94806155250
101897340076
11893aa9755
1244b4b9890
13243111c48
1413ddb4672
15b1884c86
hex71171cac

1897340076 has 72 divisors (see below), whose sum is σ = 5059891200. Its totient is φ = 597805920.

The previous prime is 1897340047. The next prime is 1897340083. The reversal of 1897340076 is 6700437981.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324741 + ... + 330531.

Almost surely, 21897340076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897340076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2529945600).

1897340076 is an abundant number, since it is smaller than the sum of its proper divisors (3162551124).

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

1897340076 is a wasteful number, since it uses less digits than its factorization.

1897340076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299 (or 6294 counting only the distinct ones).

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

The square root of 1897340076 is about 43558.4673284081. The cubic root of 1897340076 is about 1237.9840804646.

It can be divided in two parts, 18973 and 40076, that added together give a 10-th power (59049 = 310).

The spelling of 1897340076 in words is "one billion, eight hundred ninety-seven million, three hundred forty thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 479 684 958 1437 1916 2874 4311 5748 5791 8622 9101 11582 17244 17373 18202 23164 27303 34746 36404 52119 54606 69492 81909 104238 109212 110029 163818 208476 220058 327636 330087 440116 660174 990261 1320348 1980522 2773889 3961044 5547778 8321667 11095556 16643334 24965001 33286668 49930002 52703891 99860004 105407782 158111673 210815564 316223346 474335019 632446692 948670038 1897340076