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49132780 = 2252456639
BaseRepresentation
bin1011101101101…
…1010011101100
310102110012111121
42323123103230
5100034222110
64513030324
71134423154
oct273332354
9112405447
1049132780
1125809204
12145553a4
13a243768
14674d764
1544a7cda
hex2edb4ec

49132780 has 12 divisors (see below), whose sum is σ = 103178880. Its totient is φ = 19653104.

The previous prime is 49132777. The next prime is 49132793. The reversal of 49132780 is 8723194.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228300 + ... + 1228339.

It is an arithmetic number, because the mean of its divisors is an integer number (8598240).

Almost surely, 249132780 is an apocalyptic number.

It is an amenable number.

49132780 is an abundant number, since it is smaller than the sum of its proper divisors (54046100).

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

49132780 is a wasteful number, since it uses less digits than its factorization.

49132780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456648 (or 2456646 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 49132780 is about 7009.4778692853. The cubic root of 49132780 is about 366.2608052817.

The spelling of 49132780 in words is "forty-nine million, one hundred thirty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2456639 4913278 9826556 12283195 24566390 49132780