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1156872468 = 22396406039
BaseRepresentation
bin100010011110100…
…0111100100010100
32222121212012200110
41010331013210110
54332124404333
6310443443020
740445153013
oct10475074424
92877765613
101156872468
1154402a454
12283526470
131558a422b
14ad904a7a
156b86c063
hex44f47914

1156872468 has 12 divisors (see below), whose sum is σ = 2699369120. Its totient is φ = 385624152.

The previous prime is 1156872461. The next prime is 1156872517. The reversal of 1156872468 is 8642786511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11568724682 = 2676707814432822048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156872461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48203008 + ... + 48203031.

Almost surely, 21156872468 is an apocalyptic number.

It is an amenable number.

1156872468 is an abundant number, since it is smaller than the sum of its proper divisors (1542496652).

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

1156872468 is a wasteful number, since it uses less digits than its factorization.

1156872468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96406046 (or 96406044 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 1156872468 is about 34012.8279918033. The cubic root of 1156872468 is about 1049.7724277781.

The spelling of 1156872468 in words is "one billion, one hundred fifty-six million, eight hundred seventy-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 96406039 192812078 289218117 385624156 578436234 1156872468