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1220068284 = 2231012414177
BaseRepresentation
bin100100010111000…
…1100001110111100
310011000202220001020
41020232030032330
54444314141114
6321022144140
742143260251
oct11056141674
93130686036
101220068284
115767733a6
122a0722050
131659cc9c6
14b8075428
15721a1aa9
hex48b8c3bc

1220068284 has 48 divisors (see below), whose sum is σ = 2887633056. Its totient is φ = 400896000.

The previous prime is 1220068273. The next prime is 1220068307. The reversal of 1220068284 is 4828600221.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 290004 + ... + 294180.

It is an arithmetic number, because the mean of its divisors is an integer number (60159022).

Almost surely, 21220068284 is an apocalyptic number.

It is an amenable number.

1220068284 is an abundant number, since it is smaller than the sum of its proper divisors (1667564772).

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

1220068284 is a wasteful number, since it uses less digits than its factorization.

1220068284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1220068284 is about 34929.4758620853. The cubic root of 1220068284 is about 1068.5496651551.

The spelling of 1220068284 in words is "one billion, two hundred twenty million, sixty-eight thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 101 202 241 303 404 482 606 723 964 1212 1446 2892 4177 8354 12531 16708 24341 25062 48682 50124 73023 97364 146046 292092 421877 843754 1006657 1265631 1687508 2013314 2531262 3019971 4026628 5062524 6039942 12079884 101672357 203344714 305017071 406689428 610034142 1220068284