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157480740 = 223351915349
BaseRepresentation
bin10010110001011…
…11011100100100
3101222022211222000
421120233130210
5310303340430
623343205300
73621364344
oct1130573444
9358284860
10157480740
118099167a
12448a6830
132681ab91
1416cb4d24
15dc5ae60
hex962f724

157480740 has 96 divisors (see below), whose sum is σ = 515760000. Its totient is φ = 39782016.

The previous prime is 157480723. The next prime is 157480751. The reversal of 157480740 is 47084751.

157480740 is a `hidden beast` number, since 1 + 574 + 80 + 7 + 4 + 0 = 666.

157480740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 157480695 and 157480704.

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, 2586 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (5372500).

Almost surely, 2157480740 is an apocalyptic number.

157480740 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 157480740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257880000).

157480740 is an abundant number, since it is smaller than the sum of its proper divisors (358279260).

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

157480740 is a wasteful number, since it uses less digits than its factorization.

157480740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386 (or 15378 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 157480740 is about 12549.1330377839. The cubic root of 157480740 is about 540.0191351244.

The spelling of 157480740 in words is "one hundred fifty-seven million, four hundred eighty thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 76 90 95 108 114 135 171 180 190 228 270 285 342 380 513 540 570 684 855 1026 1140 1710 2052 2565 3420 5130 10260 15349 30698 46047 61396 76745 92094 138141 153490 184188 230235 276282 291631 306980 414423 460470 552564 583262 690705 828846 874893 920940 1166524 1381410 1458155 1657692 1749786 2072115 2624679 2762820 2916310 3499572 4144230 4374465 5249358 5832620 7874037 8288460 8748930 10498716 13123395 15748074 17497860 26246790 31496148 39370185 52493580 78740370 157480740