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49678960 = 2451036029
BaseRepresentation
bin1011110110000…
…0101001110000
310110110221201111
42331200221300
5100204211320
64532443104
71142156422
oct275405160
9113427644
1049678960
11260515a1
1214779494
13a3a5246
146852812
154564a5a
hex2f60a70

49678960 has 40 divisors (see below), whose sum is σ = 116644320. Its totient is φ = 19675392.

The previous prime is 49678933. The next prime is 49678961. The reversal of 49678960 is 6987694.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49678961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5226 + ... + 11254.

It is an arithmetic number, because the mean of its divisors is an integer number (2916108).

Almost surely, 249678960 is an apocalyptic number.

49678960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49678960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58322160).

49678960 is an abundant number, since it is smaller than the sum of its proper divisors (66965360).

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

49678960 is a wasteful number, since it uses less digits than its factorization.

49678960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145 (or 6139 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 49678960 is about 7048.3302987303. The cubic root of 49678960 is about 367.6129752773.

The spelling of 49678960 in words is "forty-nine million, six hundred seventy-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 103 206 412 515 824 1030 1648 2060 4120 6029 8240 12058 24116 30145 48232 60290 96464 120580 241160 482320 620987 1241974 2483948 3104935 4967896 6209870 9935792 12419740 24839480 49678960