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145078830 = 23351341333
BaseRepresentation
bin10001010010110…
…11101000101110
3101002222202202000
420221123220232
5244120010310
622221313130
73411102231
oct1051335056
9332882660
10145078830
1174990966
12407057a6
1324097c80
14153a7418
15cb0b4c0
hex8a5ba2e

145078830 has 64 divisors (see below), whose sum is σ = 416646720. Its totient is φ = 35710848.

The previous prime is 145078819. The next prime is 145078841. The reversal of 145078830 is 38870541.

145078830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145078819) and next prime (145078841).

It is a congruent number.

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, 17157 + ... + 24176.

It is an arithmetic number, because the mean of its divisors is an integer number (6510105).

Almost surely, 2145078830 is an apocalyptic number.

145078830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145078830 is an abundant number, since it is smaller than the sum of its proper divisors (271567890).

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

145078830 is a wasteful number, since it uses less digits than its factorization.

145078830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41362 (or 41356 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 145078830 is about 12044.8673716235. The cubic root of 145078830 is about 525.4539746757.

The spelling of 145078830 in words is "one hundred forty-five million, seventy-eight thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 41333 82666 123999 206665 247998 371997 413330 537329 619995 743994 1074658 1115991 1239990 1611987 1859985 2231982 2686645 3223974 3719970 4835961 5373290 5579955 8059935 9671922 11159910 14507883 16119870 24179805 29015766 48359610 72539415 145078830