Search a number
-
+
231505600620 = 223572053268487
BaseRepresentation
bin1101011110011011001…
…1110010000001101100
3211010120000122000122110
43113212303302001230
512243110413204440
6254204024244020
722503632065020
oct3274663620154
9733500560573
10231505600620
118a1a9970268
1238a4a910610
1318aa55b77c8
14b2c248a380
15604e352080
hex35e6cf206c

231505600620 has 96 divisors (see below), whose sum is σ = 741181529088. Its totient is φ = 52889594112.

The previous prime is 231505600597. The next prime is 231505600657. The reversal of 231505600620 is 26006505132.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 728017 + ... + 996503.

It is an arithmetic number, because the mean of its divisors is an integer number (7720640928).

Almost surely, 2231505600620 is an apocalyptic number.

231505600620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231505600620 is an abundant number, since it is smaller than the sum of its proper divisors (509675928468).

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

231505600620 is a wasteful number, since it uses less digits than its factorization.

231505600620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270559 (or 270557 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 231505600620 in words is "two hundred thirty-one billion, five hundred five million, six hundred thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 2053 4106 6159 8212 10265 12318 14371 20530 24636 28742 30795 41060 43113 57484 61590 71855 86226 123180 143710 172452 215565 268487 287420 431130 536974 805461 862260 1073948 1342435 1610922 1879409 2684870 3221844 3758818 4027305 5369740 5638227 7517636 8054610 9397045 11276454 16109220 18794090 22552908 28191135 37588180 56382270 112764540 551203811 1102407622 1653611433 2204815244 2756019055 3307222866 3858426677 5512038110 6614445732 7716853354 8268057165 11024076220 11575280031 15433706708 16536114330 19292133385 23150560062 33072228660 38584266770 46301120124 57876400155 77168533540 115752800310 231505600620