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49573940 = 22513190669
BaseRepresentation
bin1011110100011…
…1000000110100
310110021121122212
42331013000310
5100142331230
64530312552
71141241303
oct275070064
9113247585
1049573940
1125a8a6a9
1214728758
13a3694c0
14682643a
154543895
hex2f47034

49573940 has 24 divisors (see below), whose sum is σ = 112113960. Its totient is φ = 18304128.

The previous prime is 49573919. The next prime is 49573943. The reversal of 49573940 is 4937594.

It can be written as a sum of positive squares in 4 ways, for example, as 8690704 + 40883236 = 2948^2 + 6394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49573943) 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, 95075 + ... + 95594.

It is an arithmetic number, because the mean of its divisors is an integer number (4671415).

Almost surely, 249573940 is an apocalyptic number.

It is an amenable number.

49573940 is an abundant number, since it is smaller than the sum of its proper divisors (62540020).

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

49573940 is a wasteful number, since it uses less digits than its factorization.

49573940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190691 (or 190689 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 49573940 is about 7040.8763659079. The cubic root of 49573940 is about 367.3537511767.

The spelling of 49573940 in words is "forty-nine million, five hundred seventy-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 190669 381338 762676 953345 1906690 2478697 3813380 4957394 9914788 12393485 24786970 49573940