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1220934080 = 2654193059
BaseRepresentation
bin100100011000101…
…1111100111000000
310011002101212200202
41020301133213000
510000024342310
6321052504332
742153524402
oct11061374700
93132355622
101220934080
11577204933
122a0a7b0a8
13165c43b02
14b821cb72
15722c33a5
hex48c5f9c0

1220934080 has 56 divisors (see below), whose sum is σ = 2978292240. Its totient is φ = 476456960.

The previous prime is 1220934037. The next prime is 1220934083. The reversal of 1220934080 is 804390221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220934083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33410 + ... + 59649.

It is an arithmetic number, because the mean of its divisors is an integer number (53183790).

Almost surely, 21220934080 is an apocalyptic number.

1220934080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220934080 is an abundant number, since it is smaller than the sum of its proper divisors (1757358160).

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

1220934080 is an equidigital number, since it uses as much as digits as its factorization.

1220934080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93117 (or 93107 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1220934080 is about 34941.8671510267. The cubic root of 1220934080 is about 1068.8023633818.

The spelling of 1220934080 in words is "one billion, two hundred twenty million, nine hundred thirty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 64 80 82 160 164 205 320 328 410 656 820 1312 1640 2624 3280 6560 13120 93059 186118 372236 465295 744472 930590 1488944 1861180 2977888 3722360 3815419 5955776 7444720 7630838 14889440 15261676 19077095 29778880 30523352 38154190 61046704 76308380 122093408 152616760 244186816 305233520 610467040 1220934080