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2928772 = 2271137257
BaseRepresentation
bin1011001011000010000100
312111210112001
423023002010
51222210042
6142435044
733615460
oct13130204
95453461
102928772
111720480
12b92a84
137b7102
145634a0
153ccbb7
hex2cb084

2928772 has 48 divisors (see below), whose sum is σ = 6588288. Its totient is φ = 1105920.

The previous prime is 2928769. The next prime is 2928791. The reversal of 2928772 is 2778292.

It is a Smith number, since the sum of its digits (37) 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 (37).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11268 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (137256).

22928772 is an apocalyptic number.

2928772 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 2928772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294144).

2928772 is an abundant number, since it is smaller than the sum of its proper divisors (3659516).

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

2928772 is a wasteful number, since it uses less digits than its factorization.

2928772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 2928772 is about 1711.3655366403. The cubic root of 2928772 is about 143.0743740782.

The spelling of 2928772 in words is "two million, nine hundred twenty-eight thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 11 14 22 28 37 44 74 77 148 154 257 259 308 407 514 518 814 1028 1036 1628 1799 2827 2849 3598 5654 5698 7196 9509 11308 11396 19018 19789 38036 39578 66563 79156 104599 133126 209198 266252 418396 732193 1464386 2928772