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2972992 = 261141103
BaseRepresentation
bin1011010101110101000000
312121001011211
423111311000
51230113432
6143415504
734161421
oct13256500
95531154
102972992
111750720
12bb4594
13801289
14575648
153dad47
hex2d5d40

2972992 has 56 divisors (see below), whose sum is σ = 6656832. Its totient is φ = 1305600.

The previous prime is 2972971. The next prime is 2973001. The reversal of 2972992 is 2992792.

2972992 = 2842 + 2852 + ... + 3162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28813 + ... + 28915.

It is an arithmetic number, because the mean of its divisors is an integer number (118872).

22972992 is an apocalyptic number.

2972992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2972992 is the 1408-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2972992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328416).

2972992 is an abundant number, since it is smaller than the sum of its proper divisors (3683840).

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

2972992 is a wasteful number, since it uses less digits than its factorization.

2972992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 157 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 2972992 is about 1724.2366426915. The cubic root of 2972992 is about 143.7908486306.

The spelling of 2972992 in words is "two million, nine hundred seventy-two thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 16 22 32 41 44 64 82 88 103 164 176 206 328 352 412 451 656 704 824 902 1133 1312 1648 1804 2266 2624 3296 3608 4223 4532 6592 7216 8446 9064 14432 16892 18128 28864 33784 36256 46453 67568 72512 92906 135136 185812 270272 371624 743248 1486496 2972992