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1293131196 = 223378919219
BaseRepresentation
bin100110100010011…
…1001110110111100
310100010020212112000
41031010321312330
510122020144241
6332152142300
744021301540
oct11504716674
93303225460
101293131196
11603a36675
12301097990
13177ba16b6
14c3a53a20
15787d4eb6
hex4d139dbc

1293131196 has 96 divisors (see below), whose sum is σ = 3874752000. Its totient is φ = 365295744.

The previous prime is 1293131137. The next prime is 1293131219. The reversal of 1293131196 is 6911313921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1293131196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57675 + ... + 76893.

It is an arithmetic number, because the mean of its divisors is an integer number (40362000).

Almost surely, 21293131196 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 1293131196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1937376000).

1293131196 is an abundant number, since it is smaller than the sum of its proper divisors (2581620804).

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

1293131196 is a wasteful number, since it uses less digits than its factorization.

1293131196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19328 (or 19320 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 1293131196 is about 35960.1334257814. The cubic root of 1293131196 is about 1089.4672918096.

The spelling of 1293131196 in words is "one billion, two hundred ninety-three million, one hundred thirty-one thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 89 108 126 178 189 252 267 356 378 534 623 756 801 1068 1246 1602 1869 2403 2492 3204 3738 4806 5607 7476 9612 11214 16821 19219 22428 33642 38438 57657 67284 76876 115314 134533 172971 230628 269066 345942 403599 518913 538132 691884 807198 1037826 1210797 1614396 1710491 2075652 2421594 3420982 3632391 4843188 5131473 6841964 7264782 10262946 11973437 14529564 15394419 20525892 23946874 30788838 35920311 46183257 47893748 61577676 71840622 92366514 107760933 143681244 184733028 215521866 323282799 431043732 646565598 1293131196