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652572140 = 2251122912953
BaseRepresentation
bin100110111001010…
…111010111101100
31200110221002200112
4212321113113230
52314024302030
6144430515152
722112525453
oct4671272754
91613832615
10652572140
113053a6120
12162665ab8
13a527497c
146294db9a
153c454a95
hex26e575ec

652572140 has 48 divisors (see below), whose sum is σ = 1501627680. Its totient is φ = 236244480.

The previous prime is 652572133. The next prime is 652572241. The reversal of 652572140 is 41275256.

It is a junction number, because it is equal to n+sod(n) for n = 652572097 and 652572106.

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, 43904 + ... + 56856.

It is an arithmetic number, because the mean of its divisors is an integer number (31283910).

Almost surely, 2652572140 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 652572140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750813840).

652572140 is an abundant number, since it is smaller than the sum of its proper divisors (849055540).

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

652572140 is a wasteful number, since it uses less digits than its factorization.

652572140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202 (or 13200 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 652572140 is about 25545.4915787503. The cubic root of 652572140 is about 867.3802108513.

The spelling of 652572140 in words is "six hundred fifty-two million, five hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 229 458 916 1145 2290 2519 4580 5038 10076 12595 12953 25190 25906 50380 51812 64765 129530 142483 259060 284966 569932 712415 1424830 2849660 2966237 5932474 11864948 14831185 29662370 32628607 59324740 65257214 130514428 163143035 326286070 652572140