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30020010231210 = 23571108911294087
BaseRepresentation
bin1101101001101100101000…
…00010111100010110101010
310221021212220010110211022120
412310312110002330112222
512413321440104344320
6143503000255532110
76215605560504546
oct664662402742652
9127255803424276
1030020010231210
119624462178a1a
12344a0b482a036
131399b4ac89a4c
1475ad94b76a26
15370d518b6440
hex1b4d940bc5aa

30020010231210 has 64 divisors (see below), whose sum is σ = 73069550475264. Its totient is φ = 7891854062400.

The previous prime is 30020010231187. The next prime is 30020010231221. The reversal of 30020010231210 is 1213201002003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30020010231210.

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, 22550787 + ... + 23844873.

It is an arithmetic number, because the mean of its divisors is an integer number (1141711726176).

Almost surely, 230020010231210 is an apocalyptic number.

30020010231210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30020010231210 is an abundant number, since it is smaller than the sum of its proper divisors (43049540244054).

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

30020010231210 is a wasteful number, since it uses less digits than its factorization.

30020010231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305059.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30020010231210 its reverse (1213201002003), we get a palindrome (31233211233213).

The spelling of 30020010231210 in words is "thirty trillion, twenty billion, ten million, two hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 10891 21782 32673 54455 65346 108910 163365 326730 773261 1294087 1546522 2319783 2588174 3866305 3882261 4639566 6470435 7732610 7764522 11598915 12940870 19411305 23197830 38822610 91880177 183760354 275640531 459400885 551281062 918801770 1378202655 2756405310 14093901517 28187803034 42281704551 70469507585 84563409102 140939015170 211408522755 422817045510 1000667007707 2001334015414 3002001023121 5003335038535 6004002046242 10006670077070 15010005115605 30020010231210