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3678213 = 371115923
BaseRepresentation
bin1110000010000000000101
320220212120010
432002000011
51420200323
6210500433
743156440
oct16020005
96825503
103678213
112092550
121294719
139ba276
146ba657
154c9c93
hex382005

3678213 has 16 divisors (see below), whose sum is σ = 6114816. Its totient is φ = 1910640.

The previous prime is 3678211. The next prime is 3678217. The reversal of 3678213 is 3128763.

It is not a de Polignac number, because 3678213 - 21 = 3678211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678211) 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, 7731 + ... + 8192.

It is an arithmetic number, because the mean of its divisors is an integer number (382176).

Almost surely, 23678213 is an apocalyptic number.

3678213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3678213 is a deficient number, since it is larger than the sum of its proper divisors (2436603).

3678213 is a wasteful number, since it uses less digits than its factorization.

3678213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15944.

The product of its digits is 6048, while the sum is 30.

The square root of 3678213 is about 1917.8667836948. The cubic root of 3678213 is about 154.3638582440.

The spelling of 3678213 in words is "three million, six hundred seventy-eight thousand, two hundred thirteen".

Divisors: 1 3 7 11 21 33 77 231 15923 47769 111461 175153 334383 525459 1226071 3678213