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6990492060 = 22325211118397
BaseRepresentation
bin1101000001010101…
…00111000110011100
3200001011211210100100
412200222213012130
5103304031221220
63113354301100
7335142126216
oct64052470634
920034753310
106990492060
112a67a50172
121431127790
13875357346
144a45a35b6
152ada8bd90
hex1a0aa719c

6990492060 has 72 divisors (see below), whose sum is σ = 21215690496. Its totient is φ = 1863146880.

The previous prime is 6990492049. The next prime is 6990492073. The reversal of 6990492060 is 602940996.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 6990491997 and 6990492015.

It is a congruent number.

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, 370782 + ... + 389178.

It is an arithmetic number, because the mean of its divisors is an integer number (294662368).

Almost surely, 26990492060 is an apocalyptic number.

6990492060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6990492060 is an abundant number, since it is smaller than the sum of its proper divisors (14225198436).

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

6990492060 is a wasteful number, since it uses less digits than its factorization.

6990492060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20523 (or 20518 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 6990492060 is about 83609.1625361718. The cubic root of 6990492060 is about 1912.0646934425.

The spelling of 6990492060 in words is "six billion, nine hundred ninety million, four hundred ninety-two thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2111 4222 6333 8444 10555 12666 18397 18999 21110 25332 31665 36794 37998 42220 55191 63330 73588 75996 91985 94995 110382 126660 165573 183970 189990 220764 275955 331146 367940 379980 551910 662292 827865 1103820 1655730 3311460 38836067 77672134 116508201 155344268 194180335 233016402 349524603 388360670 466032804 582541005 699049206 776721340 1165082010 1398098412 1747623015 2330164020 3495246030 6990492060