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49471380 = 22325727179
BaseRepresentation
bin1011110010110…
…1111110010100
310110002101222100
42330231332110
5100131041010
64524202100
71140333300
oct274557624
9113071870
1049471380
1125a1a642
1214699330
13a33190a
1467dad00
1545232c0
hex2f2df94

49471380 has 216 divisors, whose sum is σ = 179262720. Its totient is φ = 11007360.

The previous prime is 49471333. The next prime is 49471391. The reversal of 49471380 is 8317494.

It is a happy number.

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 71 ways as a sum of consecutive naturals, for example, 626181 + ... + 626259.

It is an arithmetic number, because the mean of its divisors is an integer number (829920).

Almost surely, 249471380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49471380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89631360).

49471380 is an abundant number, since it is smaller than the sum of its proper divisors (129791340).

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

49471380 is a wasteful number, since it uses less digits than its factorization.

49471380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 49471380 is about 7033.5894108201. The cubic root of 49471380 is about 367.1002455901.

The spelling of 49471380 in words is "forty-nine million, four hundred seventy-one thousand, three hundred eighty".