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2981952 = 263231167
BaseRepresentation
bin1011011000000001000000
312121111110200
423120001000
51230410302
6143525200
734226511
oct13300100
95544420
102981952
111757426
12bb9800
1380538c
14578a08
153dd81c
hex2d8040

2981952 has 84 divisors (see below), whose sum is σ = 8875776. Its totient is φ = 956160.

The previous prime is 2981947. The next prime is 2981959. The reversal of 2981952 is 2591892.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is an Ulam number.

Its product of digits (12960) is a multiple of the sum of its prime factors (216).

It is a nialpdrome in base 9 and base 12.

It is not an unprimeable number, because it can be changed into a prime (2981959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17773 + ... + 17939.

It is an arithmetic number, because the mean of its divisors is an integer number (105664).

22981952 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 2981952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4437888).

2981952 is an abundant number, since it is smaller than the sum of its proper divisors (5893824).

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

2981952 is a wasteful number, since it uses less digits than its factorization.

2981952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 203 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2981952 is about 1726.8329392272. The cubic root of 2981952 is about 143.9351559899.

The spelling of 2981952 in words is "two million, nine hundred eighty-one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 144 167 186 192 248 279 288 334 372 496 501 558 576 668 744 992 1002 1116 1336 1488 1503 1984 2004 2232 2672 2976 3006 4008 4464 5177 5344 5952 6012 8016 8928 10354 10688 12024 15531 16032 17856 20708 24048 31062 32064 41416 46593 48096 62124 82832 93186 96192 124248 165664 186372 248496 331328 372744 496992 745488 993984 1490976 2981952