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2991252 = 22311173143
BaseRepresentation
bin1011011010010010010100
312121222020010
423122102110
51231210002
6144040220
734265565
oct13322224
95558203
102991252
111763410
121003070
13809694
1457c16c
153e146c
hex2da494

2991252 has 96 divisors (see below), whose sum is σ = 8515584. Its totient is φ = 806400.

The previous prime is 2991239. The next prime is 2991253. The reversal of 2991252 is 2521992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69543 + ... + 69585.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

22991252 is an apocalyptic number.

2991252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2991252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4257792).

2991252 is an abundant number, since it is smaller than the sum of its proper divisors (5524332).

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

2991252 is a wasteful number, since it uses less digits than its factorization.

2991252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 107 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 2991252 is about 1729.5236338368. The cubic root of 2991252 is about 144.0846338899.

It can be divided in two parts, 299 and 1252, that added together give a palindrome (1551).

The spelling of 2991252 in words is "two million, nine hundred ninety-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 17 22 31 33 34 43 44 51 62 66 68 86 93 102 124 129 132 172 186 187 204 258 341 372 374 473 516 527 561 682 731 748 946 1023 1054 1122 1333 1364 1419 1462 1581 1892 2046 2108 2193 2244 2666 2838 2924 3162 3999 4092 4386 5332 5676 5797 6324 7998 8041 8772 11594 14663 15996 16082 17391 22661 23188 24123 29326 32164 34782 43989 45322 48246 58652 67983 69564 87978 90644 96492 135966 175956 249271 271932 498542 747813 997084 1495626 2991252