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122892774940 = 225131310336073
BaseRepresentation
bin111001001110011111…
…0101110111000011100
3102202012121102210201001
41302130332232320130
54003141022244230
6132242310400044
711610253231405
oct1623476567034
9382177383631
10122892774940
1148133849811
121b998660024
13b7865c8610
145d3b5da9ac
1532e3e190ca
hex1c9cfaee1c

122892774940 has 48 divisors (see below), whose sum is σ = 277955653248. Its totient is φ = 45371073024.

The previous prime is 122892774931. The next prime is 122892774941. The reversal of 122892774940 is 49477298221.

122892774940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122892774941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3388744 + ... + 3424816.

It is an arithmetic number, because the mean of its divisors is an integer number (5790742776).

Almost surely, 2122892774940 is an apocalyptic number.

122892774940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122892774940 is an abundant number, since it is smaller than the sum of its proper divisors (155062878308).

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

122892774940 is a wasteful number, since it uses less digits than its factorization.

122892774940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49198 (or 49196 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 122892774940 in words is "one hundred twenty-two billion, eight hundred ninety-two million, seven hundred seventy-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 13103 26206 36073 52412 65515 72146 131030 144292 170339 180365 262060 340678 360730 468949 681356 721460 851695 937898 1703390 1875796 2344745 3406780 4689490 9378980 472664519 945329038 1890658076 2363322595 4726645190 6144638747 9453290380 12289277494 24578554988 30723193735 61446387470 122892774940