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49870480 = 2451156671
BaseRepresentation
bin1011111000111…
…1011010010000
310110211200102211
42332033122100
5100231323410
64540521504
71143614662
oct276173220
9113750384
1049870480
1126172480
1214850294
13a44147a
1468a2532
1545a168a
hex2f8f690

49870480 has 40 divisors (see below), whose sum is σ = 126491904. Its totient is φ = 18134400.

The previous prime is 49870477. The next prime is 49870481. The reversal of 49870480 is 8407894.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (49870481) 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, 27456 + ... + 29215.

Almost surely, 249870480 is an apocalyptic number.

49870480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49870480 is an abundant number, since it is smaller than the sum of its proper divisors (76621424).

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

49870480 is a wasteful number, since it uses less digits than its factorization.

49870480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56695 (or 56689 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 49870480 is about 7061.9034261309. The cubic root of 49870480 is about 368.0847709562.

The spelling of 49870480 in words is "forty-nine million, eight hundred seventy thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 56671 113342 226684 283355 453368 566710 623381 906736 1133420 1246762 2266840 2493524 3116905 4533680 4987048 6233810 9974096 12467620 24935240 49870480