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49287420 = 223357131759
BaseRepresentation
bin1011110000000…
…1000011111100
310102202001122000
42330001003330
5100104144140
64520222300
71135636050
oct274010374
9112661560
1049287420
1125904406
121460a990
13a298c70
14678dc60
1544d8a30
hex2f010fc

49287420 has 384 divisors, whose sum is σ = 203212800. Its totient is φ = 9621504.

The previous prime is 49287401. The next prime is 49287431. The reversal of 49287420 is 2478294.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 835351 + ... + 835409.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 249287420 is an apocalyptic number.

It is a pronic number, being equal to 7020×7021.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49287420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

49287420 is an abundant number, since it is smaller than the sum of its proper divisors (153925380).

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

49287420 is a wasteful number, since it uses less digits than its factorization.

49287420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 49287420 is about 7020.4999821950. The cubic root of 49287420 is about 366.6446579995.

The spelling of 49287420 in words is "forty-nine million, two hundred eighty-seven thousand, four hundred twenty".