Search a number
-
+
1290998164232 = 237312113524467
BaseRepresentation
bin10010110010010101011…
…111001010101100001000
311120102021212210211000102
4102302111133022230020
5132122431012223412
62425024255024532
7162162065223260
oct22622537125410
94512255724012
101290998164232
114585668977a7
1218a25480b148
13949821536ba
14466adc167a0
15238ad9d48c2
hex12c957cab08

1290998164232 has 64 divisors (see below), whose sum is σ = 2869198909440. Its totient is φ = 532899259200.

The previous prime is 1290998164217. The next prime is 1290998164259. The reversal of 1290998164232 is 2324618990921.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395938 + ... + 2128529.

It is an arithmetic number, because the mean of its divisors is an integer number (44831232960).

Almost surely, 21290998164232 is an apocalyptic number.

It is an amenable number.

1290998164232 is an abundant number, since it is smaller than the sum of its proper divisors (1578200745208).

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

1290998164232 is a wasteful number, since it uses less digits than its factorization.

1290998164232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524722 (or 3524718 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 1290998164232 in words is "one trillion, two hundred ninety billion, nine hundred ninety-eight million, one hundred sixty-four thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 211 217 248 422 434 844 868 1477 1688 1736 2954 5908 6541 11816 13082 26164 45787 52328 91574 183148 366296 3524467 7048934 14097868 24671269 28195736 49342538 98685076 109258477 197370152 218516954 437033908 743662537 764809339 874067816 1487325074 1529618678 2974650148 3059237356 5205637759 5949300296 6118474712 10411275518 20822551036 23053538647 41645102072 46107077294 92214154588 161374770529 184428309176 322749541058 645499082116 1290998164232