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3672297405 = 3657229709
BaseRepresentation
bin1101101011100010…
…1100111110111101
3100110221002001000000
43122320230332331
530010102004110
61404222024513
7160001004300
oct33270547675
910427061000
103672297405
111614a09437
12865a18139
13466a7455a
1426ba0cb37
151675e31c0
hexdae2cfbd

3672297405 has 168 divisors, whose sum is σ = 7962067800. Its totient is φ = 1618589952.

The previous prime is 3672297373. The next prime is 3672297413. The reversal of 3672297405 is 5047922763.

It can be written as a sum of positive squares in 4 ways, for example, as 60047001 + 3612250404 = 7749^2 + 60102^2 .

It is not a de Polignac number, because 3672297405 - 25 = 3672297373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 5179191 + ... + 5179899.

Almost surely, 23672297405 is an apocalyptic number.

3672297405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3672297405 is an abundant number, since it is smaller than the sum of its proper divisors (4289770395).

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

3672297405 is an equidigital number, since it uses as much as digits as its factorization.

3672297405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 3672297405 is about 60599.4835374032. The cubic root of 3672297405 is about 1542.8106042510.

The spelling of 3672297405 in words is "three billion, six hundred seventy-two million, two hundred ninety-seven thousand, four hundred five".