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155892030 = 23572173613
BaseRepresentation
bin10010100101010…
…11100100111110
3101212100010122220
421102223210332
5304402021110
623245150210
73602026500
oct1122534476
9355303586
10155892030
117aaa6a98
124425b366
13263b2a08
14169bdd70
15da45370
hex94ab93e

155892030 has 96 divisors (see below), whose sum is σ = 438454944. Its totient is φ = 35368704.

The previous prime is 155892029. The next prime is 155892047. The reversal of 155892030 is 30298551.

155892030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155891982 and 155892000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 254004 + ... + 254616.

It is an arithmetic number, because the mean of its divisors is an integer number (4567239).

Almost surely, 2155892030 is an apocalyptic number.

155892030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155892030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219227472).

155892030 is an abundant number, since it is smaller than the sum of its proper divisors (282562914).

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

155892030 is a wasteful number, since it uses less digits than its factorization.

155892030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 155892030 is about 12485.6729894708. The cubic root of 155892030 is about 538.1970390701.

The spelling of 155892030 in words is "one hundred fifty-five million, eight hundred ninety-two thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 173 210 245 294 346 490 519 613 735 865 1038 1211 1226 1470 1730 1839 2422 2595 3065 3633 3678 4291 5190 6055 6130 7266 8477 8582 9195 12110 12873 16954 18165 18390 21455 25431 25746 30037 36330 42385 42910 50862 60074 64365 84770 90111 106049 127155 128730 150185 180222 212098 254310 300370 318147 450555 530245 636294 742343 901110 1060490 1484686 1590735 2227029 3181470 3711715 4454058 5196401 7423430 10392802 11135145 15589203 22270290 25982005 31178406 51964010 77946015 155892030