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49306428 = 2233795779
BaseRepresentation
bin1011110000010…
…1101100111100
310102210000201000
42330011230330
5100110301203
64520450300
71136045343
oct274055474
9112700630
1049306428
1125917716
1214619990
13a2a4802
146796b5a
1544de4a3
hex2f05b3c

49306428 has 48 divisors (see below), whose sum is σ = 129472000. Its totient is φ = 16224624.

The previous prime is 49306427. The next prime is 49306441. The reversal of 49306428 is 82460394.

It is a happy number.

49306428 is a `hidden beast` number, since 4 + 9 + 3 + 0 + 642 + 8 = 666.

It is a super-2 number, since 2×493064282 = 4862247684238368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49306392 and 49306401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49306427) 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, 5643 + ... + 11421.

Almost surely, 249306428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49306428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64736000).

49306428 is an abundant number, since it is smaller than the sum of its proper divisors (80165572).

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

49306428 is a wasteful number, since it uses less digits than its factorization.

49306428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871 (or 5863 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 49306428 is about 7021.8536014360. The cubic root of 49306428 is about 366.6917848725.

The spelling of 49306428 in words is "forty-nine million, three hundred six thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 79 108 158 237 316 474 711 948 1422 2133 2844 4266 5779 8532 11558 17337 23116 34674 52011 69348 104022 156033 208044 312066 456541 624132 913082 1369623 1826164 2739246 4108869 5478492 8217738 12326607 16435476 24653214 49306428