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158479380 = 2232519149311
BaseRepresentation
bin10010111001000…
…11010000010100
3102001012120211200
421130203100110
5311032320010
623420432500
73633024003
oct1134432024
9361176750
10158479380
11815039a4
12450a8730
1326aaa5a7
1417094c3a
15dda6cc0
hex9723414

158479380 has 144 divisors (see below), whose sum is σ = 511056000. Its totient is φ = 39640320.

The previous prime is 158479379. The next prime is 158479393. The reversal of 158479380 is 83974851.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 509425 + ... + 509735.

It is an arithmetic number, because the mean of its divisors is an integer number (3549000).

Almost surely, 2158479380 is an apocalyptic number.

158479380 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 158479380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255528000).

158479380 is an abundant number, since it is smaller than the sum of its proper divisors (352576620).

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

158479380 is a wasteful number, since it uses less digits than its factorization.

158479380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 158479380 is about 12588.8593605616. The cubic root of 158479380 is about 541.1582136294.

The spelling of 158479380 in words is "one hundred fifty-eight million, four hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 149 171 180 190 228 285 298 311 342 380 447 570 596 622 684 745 855 894 933 1140 1244 1341 1490 1555 1710 1788 1866 2235 2682 2799 2831 2980 3110 3420 3732 4470 4665 5364 5598 5662 5909 6220 6705 8493 8940 9330 11196 11324 11818 13410 13995 14155 16986 17727 18660 23636 25479 26820 27990 28310 29545 33972 35454 42465 46339 50958 53181 55980 56620 59090 70908 84930 88635 92678 101916 106362 118180 127395 139017 169860 177270 185356 212724 231695 254790 265905 278034 354540 417051 463390 509580 531810 556068 695085 834102 880441 926780 1063620 1390170 1668204 1760882 2085255 2641323 2780340 3521764 4170510 4402205 5282646 7923969 8341020 8804410 10565292 13206615 15847938 17608820 26413230 31695876 39619845 52826460 79239690 158479380