Search a number
-
+
5721717972 = 22315122913789
BaseRepresentation
bin1010101010000101…
…00111110011010100
3112202202102101111110
411111002213303110
543204224433342
62343432135020
7261534541335
oct52502476324
915682371443
105721717972
112476840443
121138237470
13702533349
143c3c9028c
152374b8c9c
hex1550a7cd4

5721717972 has 48 divisors (see below), whose sum is σ = 13498755200. Its totient is φ = 1886198400.

The previous prime is 5721717971. The next prime is 5721717983. The reversal of 5721717972 is 2797171275.

It is a super-2 number, since 2×57217179722 = 65476113102215585568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721717971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408054 + ... + 421842.

Almost surely, 25721717972 is an apocalyptic number.

It is an amenable number.

5721717972 is an abundant number, since it is smaller than the sum of its proper divisors (7777037228).

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

5721717972 is a wasteful number, since it uses less digits than its factorization.

5721717972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14176 (or 14174 counting only the distinct ones).

The product of its digits is 432180, while the sum is 48.

The square root of 5721717972 is about 75642.0383913601. The cubic root of 5721717972 is about 1788.5818352272.

The spelling of 5721717972 in words is "five billion, seven hundred twenty-one million, seven hundred seventeen thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 151 229 302 453 458 604 687 906 916 1374 1812 2748 13789 27578 34579 41367 55156 69158 82734 103737 138316 165468 207474 414948 2082139 3157681 4164278 6246417 6315362 8328556 9473043 12492834 12630724 18946086 24985668 37892172 476809831 953619662 1430429493 1907239324 2860858986 5721717972