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49973742 = 23271330509
BaseRepresentation
bin1011111010100…
…0100111101110
310111000221002100
42332220213232
5100243124432
64543035530
71144525020
oct276504756
9114027070
1049973742
1126233015
121489bba6
13a479480
1468cc010
1545c207c
hex2fa89ee

49973742 has 48 divisors (see below), whose sum is σ = 133267680. Its totient is φ = 13179456.

The previous prime is 49973731. The next prime is 49973747. The reversal of 49973742 is 24737994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49973747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13617 + ... + 16892.

It is an arithmetic number, because the mean of its divisors is an integer number (2776410).

Almost surely, 249973742 is an apocalyptic number.

49973742 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

49973742 is an abundant number, since it is smaller than the sum of its proper divisors (83293938).

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

49973742 is a wasteful number, since it uses less digits than its factorization.

49973742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537 (or 30534 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 49973742 is about 7069.2108470465. The cubic root of 49973742 is about 368.3386483721.

The spelling of 49973742 in words is "forty-nine million, nine hundred seventy-three thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 30509 61018 91527 183054 213563 274581 396617 427126 549162 640689 793234 1189851 1281378 1922067 2379702 2776319 3569553 3844134 5552638 7139106 8328957 16657914 24986871 49973742