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157448080 = 24513914159
BaseRepresentation
bin10010110001001…
…11011110010000
3101222021012011101
421120213132100
5310301314310
623342354144
73621200206
oct1130473620
9358235141
10157448080
118096a089
124488b954
132680905a
1416ca7076
15dc5143a
hex9627790

157448080 has 40 divisors (see below), whose sum is σ = 368726400. Its totient is φ = 62521728.

The previous prime is 157448063. The next prime is 157448129. The reversal of 157448080 is 80844751.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4041 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (9218160).

Almost surely, 2157448080 is an apocalyptic number.

157448080 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 157448080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184363200).

157448080 is an abundant number, since it is smaller than the sum of its proper divisors (211278320).

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

157448080 is a wasteful number, since it uses less digits than its factorization.

157448080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14311 (or 14305 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 157448080 is about 12547.8316851957. The cubic root of 157448080 is about 539.9818009413.

The spelling of 157448080 in words is "one hundred fifty-seven million, four hundred forty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 139 278 556 695 1112 1390 2224 2780 5560 11120 14159 28318 56636 70795 113272 141590 226544 283180 566360 1132720 1968101 3936202 7872404 9840505 15744808 19681010 31489616 39362020 78724040 157448080