Search a number
-
+
2990624 = 25713279
BaseRepresentation
bin1011011010001000100000
312121221100212
423122020200
51231144444
6144033252
734264010
oct13321040
95557325
102990624
11176299a
121002828
13809300
1457bc40
153e119e
hex2da220

2990624 has 72 divisors (see below), whose sum is σ = 7378560. Its totient is φ = 1168128.

The previous prime is 2990609. The next prime is 2990629. The reversal of 2990624 is 4260992.

2990624 = T237 + T238 + ... + T314.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (2990629) 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, 37817 + ... + 37895.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

22990624 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 2990624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3689280).

2990624 is an abundant number, since it is smaller than the sum of its proper divisors (4387936).

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

2990624 is a wasteful number, since it uses less digits than its factorization.

2990624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2990624 is about 1729.3420714249. The cubic root of 2990624 is about 144.0745498757.

The spelling of 2990624 in words is "two million, nine hundred ninety thousand, six hundred twenty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 79 91 104 112 158 169 182 208 224 316 338 364 416 553 632 676 728 1027 1106 1183 1264 1352 1456 2054 2212 2366 2528 2704 2912 4108 4424 4732 5408 7189 8216 8848 9464 13351 14378 16432 17696 18928 26702 28756 32864 37856 53404 57512 93457 106808 115024 186914 213616 230048 373828 427232 747656 1495312 2990624