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145100670 = 2351113149227
BaseRepresentation
bin10001010011000…
…00111101111110
3101010000212200220
420221200331332
5244121210140
622222002210
73411223011
oct1051407576
9333025626
10145100670
11749a6310
1240716366
13240a4bb0
14153b1378
15cb12bd0
hex8a60f7e

145100670 has 128 divisors (see below), whose sum is σ = 413683200. Its totient is φ = 32110080.

The previous prime is 145100653. The next prime is 145100689. The reversal of 145100670 is 76001541.

It is a self number, because there is not a number n which added to its sum of digits gives 145100670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 639097 + ... + 639323.

It is an arithmetic number, because the mean of its divisors is an integer number (3231900).

Almost surely, 2145100670 is an apocalyptic number.

145100670 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 145100670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206841600).

145100670 is an abundant number, since it is smaller than the sum of its proper divisors (268582530).

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

145100670 is a wasteful number, since it uses less digits than its factorization.

145100670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 145100670 is about 12045.7739477379. The cubic root of 145100670 is about 525.4803404315.

The spelling of 145100670 in words is "one hundred forty-five million, one hundred thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 11 13 15 22 26 30 33 39 55 65 66 78 110 130 143 149 165 195 227 286 298 330 390 429 447 454 681 715 745 858 894 1135 1362 1430 1490 1639 1937 2145 2235 2270 2497 2951 3278 3405 3874 4290 4470 4917 4994 5811 5902 6810 7491 8195 8853 9685 9834 11622 12485 14755 14982 16390 17706 19370 21307 24585 24970 29055 29510 32461 33823 37455 42614 44265 49170 58110 63921 64922 67646 74910 88530 97383 101469 106535 127842 162305 169115 194766 202938 213070 319605 324610 338230 372053 439699 486915 507345 639210 744106 879398 973830 1014690 1116159 1319097 1860265 2198495 2232318 2638194 3720530 4396990 4836689 5580795 6595485 9673378 11161590 13190970 14510067 24183445 29020134 48366890 72550335 145100670