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47949072 = 2431815519
BaseRepresentation
bin1011011011101…
…0010100010000
310100020001202120
42312322110100
544233332242
64431414240
71121363133
oct266722420
9110201676
1047949072
112507a936
1214084380
139c1aa42
14652221a
1543221ec
hex2dba510

47949072 has 40 divisors (see below), whose sum is σ = 124575360. Its totient is φ = 15891840.

The previous prime is 47949053. The next prime is 47949073. The reversal of 47949072 is 27094974.

It is a super-2 number, since 2×479490722 = 4598227011322368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47949073) 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, 5929 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (3114384).

Almost surely, 247949072 is an apocalyptic number.

It is an amenable number.

47949072 is an abundant number, since it is smaller than the sum of its proper divisors (76626288).

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

47949072 is a wasteful number, since it uses less digits than its factorization.

47949072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711 (or 5705 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 47949072 is about 6924.5268430413. The cubic root of 47949072 is about 363.2955420859.

The spelling of 47949072 in words is "forty-seven million, nine hundred forty-nine thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 181 362 543 724 1086 1448 2172 2896 4344 5519 8688 11038 16557 22076 33114 44152 66228 88304 132456 264912 998939 1997878 2996817 3995756 5993634 7991512 11987268 15983024 23974536 47949072