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157287301430 = 2573041738889
BaseRepresentation
bin1001001001111100001…
…1011100000100110110
3120000222121210210010112
42102133003130010312
510034111022121210
6200131244423022
714235504001010
oct2223703340466
9500877723115
10157287301430
1160783643616
1226597247a72
1311aa825823c
1478815371b0
154158749d05
hex249f0dc136

157287301430 has 32 divisors (see below), whose sum is σ = 323669286720. Its totient is φ = 53909268480.

The previous prime is 157287301403. The next prime is 157287301441. The reversal of 157287301430 is 34103782751.

157287301430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1572873014302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156575 + ... + 582314.

It is an arithmetic number, because the mean of its divisors is an integer number (10114665210).

Almost surely, 2157287301430 is an apocalyptic number.

157287301430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157287301430 is an abundant number, since it is smaller than the sum of its proper divisors (166381985290).

157287301430 is a wasteful number, since it uses less digits than its factorization.

157287301430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741944.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 157287301430 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, three hundred one thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 3041 6082 15205 21287 30410 42574 106435 212870 738889 1477778 3694445 5172223 7388890 10344446 25861115 51722230 2246961449 4493922898 11234807245 15728730143 22469614490 31457460286 78643650715 157287301430