Search a number
-
+
49481040 = 2435729453
BaseRepresentation
bin1011110011000…
…0010101010000
310110002220020010
42330300111100
5100131343130
64524314520
71140403410
oct274602520
9113086203
1049481040
1125a26924
12146a2a40
13a33612b
146800640
1545260b0
hex2f30550

49481040 has 80 divisors (see below), whose sum is σ = 175310208. Its totient is φ = 11309568.

The previous prime is 49481023. The next prime is 49481057. The reversal of 49481040 is 4018494.

It is an interprime number because it is at equal distance from previous prime (49481023) and next prime (49481057).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 49480989 and 49481007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13047 + ... + 16406.

Almost surely, 249481040 is an apocalyptic number.

49481040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49481040 is an abundant number, since it is smaller than the sum of its proper divisors (125829168).

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

49481040 is a wasteful number, since it uses less digits than its factorization.

49481040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29476 (or 29470 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 49481040 is about 7034.2760821566. The cubic root of 49481040 is about 367.1241379064.

The spelling of 49481040 in words is "forty-nine million, four hundred eighty-one thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 29453 58906 88359 117812 147265 176718 206171 235624 294530 353436 412342 441795 471248 589060 618513 706872 824684 883590 1030855 1178120 1237026 1413744 1649368 1767180 2061710 2356240 2474052 3092565 3298736 3534360 4123420 4948104 6185130 7068720 8246840 9896208 12370260 16493680 24740520 49481040