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2131022148 = 2231710446187
BaseRepresentation
bin111111100000100…
…1101000101000100
312111111220010211020
41333001031011010
513331020202043
6551243111140
7103544250363
oct17701150504
95444803736
102131022148
119a39a7532
124b58124b0
1327c660168
141630437da
15c7143e83
hex7f04d144

2131022148 has 24 divisors (see below), whose sum is σ = 5264878752. Its totient is φ = 668555904.

The previous prime is 2131022123. The next prime is 2131022161. The reversal of 2131022148 is 8412201312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5222890 + ... + 5223297.

It is an arithmetic number, because the mean of its divisors is an integer number (219369948).

Almost surely, 22131022148 is an apocalyptic number.

It is an amenable number.

2131022148 is an abundant number, since it is smaller than the sum of its proper divisors (3133856604).

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

2131022148 is a wasteful number, since it uses less digits than its factorization.

2131022148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446211 (or 10446209 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2131022148 is about 46162.9954400708. The cubic root of 2131022148 is about 1286.8541313057.

The spelling of 2131022148 in words is "two billion, one hundred thirty-one million, twenty-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 10446187 20892374 31338561 41784748 62677122 125354244 177585179 355170358 532755537 710340716 1065511074 2131022148