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148741920 = 2534523499
BaseRepresentation
bin10001101110110…
…01111100100000
3101100212212120000
420313121330200
5301034220140
622432020000
73454166625
oct1067317440
9340785500
10148741920
1176a63008
1241991600
1324a7b392
1415a7c34c
15d0d1a30
hex8dd9f20

148741920 has 240 divisors, whose sum is σ = 548856000. Its totient is φ = 37863936.

The previous prime is 148741919. The next prime is 148741927. The reversal of 148741920 is 29147841.

148741920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is not an unprimeable number, because it can be changed into a prime (148741927) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 297831 + ... + 298329.

It is an arithmetic number, because the mean of its divisors is an integer number (2286900).

Almost surely, 2148741920 is an apocalyptic number.

148741920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148741920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274428000).

148741920 is an abundant number, since it is smaller than the sum of its proper divisors (400114080).

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

148741920 is a wasteful number, since it uses less digits than its factorization.

148741920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 148741920 is about 12195.9796654471. The cubic root of 148741920 is about 529.8396572037.

The spelling of 148741920 in words is "one hundred forty-eight million, seven hundred forty-one thousand, nine hundred twenty".