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549749130 = 235724773109
BaseRepresentation
bin100000110001001…
…000000110001010
31102022110011000220
4200301020012022
52111213433010
6130315010510
716423535100
oct4061100612
91368404026
10549749130
11262356727
12134139a36
1389b83258
1453025c70
15333e3970
hex20c4818a

549749130 has 192 divisors, whose sum is σ = 1603514880. Its totient is φ = 120185856.

The previous prime is 549749129. The next prime is 549749147. The reversal of 549749130 is 31947945.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5043516 + ... + 5043624.

It is an arithmetic number, because the mean of its divisors is an integer number (8351640).

Almost surely, 2549749130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549749130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801757440).

549749130 is an abundant number, since it is smaller than the sum of its proper divisors (1053765750).

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

549749130 is a wasteful number, since it uses less digits than its factorization.

549749130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 549749130 is about 23446.7296227000. The cubic root of 549749130 is about 819.1966800635.

The spelling of 549749130 in words is "five hundred forty-nine million, seven hundred forty-nine thousand, one hundred thirty".