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231942044152 = 2371317193753503
BaseRepresentation
bin1101100000000011010…
…0101011100111111000
3211011200102212122121201
43120000310223213320
512300004130403102
6254315214543544
722520511563110
oct3300064534770
9734612778551
10231942044152
118a4032677a5
1238b50b07bb4
1318b44b48c10
14b32441a040
156077813987
hex3600d2b9f8

231942044152 has 512 divisors, whose sum is σ = 625488998400. Its totient is φ = 77946126336.

The previous prime is 231942044137. The next prime is 231942044179. The reversal of 231942044152 is 251440249132.

It is a super-3 number, since 3×2319420441523 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 461117133 + ... + 461117635.

It is an arithmetic number, because the mean of its divisors is an integer number (1221658200).

Almost surely, 2231942044152 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 231942044152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312744499200).

231942044152 is an abundant number, since it is smaller than the sum of its proper divisors (393546954248).

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

231942044152 is a wasteful number, since it uses less digits than its factorization.

231942044152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 231942044152 in words is "two hundred thirty-one billion, nine hundred forty-two million, forty-four thousand, one hundred fifty-two".