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7642038 = 231273673
BaseRepresentation
bin11101001001101110110110
3112101020220110
4131021232312
53424021123
6431443450
7121645665
oct35115666
915336813
107642038
11434a638
122686586
131777521
14102cddc
15a0e493
hex749bb6

7642038 has 8 divisors (see below), whose sum is σ = 15284088. Its totient is φ = 2547344.

The previous prime is 7642013. The next prime is 7642039. The reversal of 7642038 is 8302467.

It is a sphenic number, since it is the product of 3 distinct primes.

7642038 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7641996 and 7642014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636831 + ... + 636842.

It is an arithmetic number, because the mean of its divisors is an integer number (1910511).

Almost surely, 27642038 is an apocalyptic number.

7642038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7642038 is a wasteful number, since it uses less digits than its factorization.

7642038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273678.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 7642038 is about 2764.4236288963. The cubic root of 7642038 is about 196.9713512756.

The spelling of 7642038 in words is "seven million, six hundred forty-two thousand, thirty-eight".

Divisors: 1 2 3 6 1273673 2547346 3821019 7642038