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49073140 = 2252453657
BaseRepresentation
bin1011101100110…
…0101111110100
310102100011200201
42323030233310
5100030320030
64511450244
71134054244
oct273145764
9112304621
1049073140
1125778416
1214526984
13a22257c
146735b24
1544952ca
hex2eccbf4

49073140 has 12 divisors (see below), whose sum is σ = 103053636. Its totient is φ = 19629248.

The previous prime is 49073113. The next prime is 49073147. The reversal of 49073140 is 4137094.

It can be written as a sum of positive squares in 2 ways, for example, as 5354596 + 43718544 = 2314^2 + 6612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49073099 and 49073108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49073147) 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, 1226809 + ... + 1226848.

It is an arithmetic number, because the mean of its divisors is an integer number (8587803).

Almost surely, 249073140 is an apocalyptic number.

It is an amenable number.

49073140 is an abundant number, since it is smaller than the sum of its proper divisors (53980496).

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

49073140 is a wasteful number, since it uses less digits than its factorization.

49073140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453666 (or 2453664 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 49073140 is about 7005.2223376564. Note that the first 3 decimals coincide. The cubic root of 49073140 is about 366.1125496177.

The spelling of 49073140 in words is "forty-nine million, seventy-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2453657 4907314 9814628 12268285 24536570 49073140