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2064331551 = 319148324421
BaseRepresentation
bin111101100001011…
…0011001100011111
312022212101220112010
41323002303030133
513211432102201
6540501442303
7102104346222
oct17302631437
95285356463
102064331551
1196a296937
12497410393
1326b8aca79
141582435b9
15c136dbd6
hex7b0b331f

2064331551 has 16 divisors (see below), whose sum is σ = 2899379840. Its totient is φ = 1302855840.

The previous prime is 2064331543. The next prime is 2064331553. The reversal of 2064331551 is 1551334602.

It is not a de Polignac number, because 2064331551 - 23 = 2064331543 is a prime.

It is a super-2 number, since 2×20643315512 = 8522929504908131202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064331553) 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, 72321 + ... + 96741.

It is an arithmetic number, because the mean of its divisors is an integer number (181211240).

Almost surely, 22064331551 is an apocalyptic number.

2064331551 is a deficient number, since it is larger than the sum of its proper divisors (835048289).

2064331551 is a wasteful number, since it uses less digits than its factorization.

2064331551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25926.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2064331551 is about 45434.9155496079. The cubic root of 2064331551 is about 1273.2875230375.

The spelling of 2064331551 in words is "two billion, sixty-four million, three hundred thirty-one thousand, five hundred fifty-one".

Divisors: 1 3 19 57 1483 4449 24421 28177 73263 84531 463999 1391997 36216343 108649029 688110517 2064331551