Search a number
-
+
16772988 = 2233721021
BaseRepresentation
bin111111111110…
…111101111100
31011120011012210
4333332331330
513243213423
61355300420
7262365561
oct77767574
934504183
1016772988
119516881
12574a710
13362365b
142328868
151714b93
hexffef7c

16772988 has 36 divisors (see below), whose sum is σ = 40262712. Its totient is φ = 5434560.

The previous prime is 16772983. The next prime is 16772993. The reversal of 16772988 is 88927761.

It is an interprime number because it is at equal distance from previous prime (16772983) and next prime (16772993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772983) 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, 15918 + ... + 16938.

Almost surely, 216772988 is an apocalyptic number.

It is an amenable number.

16772988 is an abundant number, since it is smaller than the sum of its proper divisors (23489724).

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

16772988 is a wasteful number, since it uses less digits than its factorization.

16772988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1063 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 16772988 is about 4095.4838541984. The cubic root of 16772988 is about 255.9784934732.

The spelling of 16772988 in words is "sixteen million, seven hundred seventy-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 1021 1369 2042 2738 3063 4084 4107 5476 6126 8214 12252 16428 37777 75554 113331 151108 226662 453324 1397749 2795498 4193247 5590996 8386494 16772988