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748146240 = 26335131661
BaseRepresentation
bin101100100101111…
…100111001000000
31221010202202201000
4230211330321000
53013011134430
6202123212000
724353065242
oct5445747100
91833682630
10748146240
11354344386
1218a677000
13bbcc8aaa
147150c092
1545a32e60
hex2c97ce40

748146240 has 224 divisors, whose sum is σ = 2663464320. Its totient is φ = 197683200.

The previous prime is 748146199. The next prime is 748146331. The reversal of 748146240 is 42641847.

It is a super-2 number, since 2×7481462402 = 1119445592852275200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 748146195 and 748146204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1131510 + ... + 1132170.

Almost surely, 2748146240 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 748146240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331732160).

748146240 is an abundant number, since it is smaller than the sum of its proper divisors (1915318080).

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

748146240 is a wasteful number, since it uses less digits than its factorization.

748146240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 748146240 is about 27352.2620636758. The cubic root of 748146240 is about 907.8111220657.

The spelling of 748146240 in words is "seven hundred forty-eight million, one hundred forty-six thousand, two hundred forty".