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2031220505132 = 2271347118729279
BaseRepresentation
bin11101100011101110001…
…011010011101000101100
321012011221020201211121222
4131203232023103220230
5231234414422131012
64153044012442512
7266515352263640
oct35435613235054
97164836654558
102031220505132
11713488026445
122897b7779438
1311970a74cc50
1470451044c20
1537c83d42972
hex1d8ee2d3a2c

2031220505132 has 48 divisors (see below), whose sum is σ = 4468020264960. Its totient is φ = 786462737472.

The previous prime is 2031220505117. The next prime is 2031220505177. The reversal of 2031220505132 is 2315050221302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59347532 + ... + 59381747.

It is an arithmetic number, because the mean of its divisors is an integer number (93083755520).

Almost surely, 22031220505132 is an apocalyptic number.

It is an amenable number.

2031220505132 is an abundant number, since it is smaller than the sum of its proper divisors (2436799759828).

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

2031220505132 is a wasteful number, since it uses less digits than its factorization.

2031220505132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118729350 (or 118729348 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 2031220505132 its reverse (2315050221302), we get a palindrome (4346270726434).

It can be divided in two parts, 2031220 and 505132, that added together give a palindrome (2536352).

The spelling of 2031220505132 in words is "two trillion, thirty-one billion, two hundred twenty million, five hundred five thousand, one hundred thirty-two".

Divisors: 1 2 4 7 13 14 26 28 47 52 91 94 182 188 329 364 611 658 1222 1316 2444 4277 8554 17108 118729279 237458558 474917116 831104953 1543480627 1662209906 3086961254 3324419812 5580276113 6173922508 10804364389 11160552226 21608728778 22321104452 39061932791 43217457556 72543589469 78123865582 145087178938 156247731164 290174357876 507805126283 1015610252566 2031220505132