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1222220950 = 2521729179277
BaseRepresentation
bin100100011011001…
…1001110010010110
310011011211020221121
41020312121302112
510000342032300
6321140234154
742200464246
oct11066316226
93134736847
101222220950
11577a03765
122a139b95a
131662a4782
14b8475b26
157247981a
hex48d99c96

1222220950 has 96 divisors (see below), whose sum is σ = 2513008800. Its totient is φ = 440186880.

The previous prime is 1222220939. The next prime is 1222220971. The reversal of 1222220950 is 590222221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4412212 + ... + 4412488.

It is an arithmetic number, because the mean of its divisors is an integer number (26177175).

Almost surely, 21222220950 is an apocalyptic number.

1222220950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222220950 is an abundant number, since it is smaller than the sum of its proper divisors (1290787850).

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

1222220950 is a wasteful number, since it uses less digits than its factorization.

1222220950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1222220950 is about 34960.2767437559. The cubic root of 1222220950 is about 1069.1777390261.

The spelling of 1222220950 in words is "one billion, two hundred twenty-two million, two hundred twenty thousand, nine hundred fifty".

Divisors: 1 2 5 10 17 25 29 34 50 58 85 145 170 179 277 290 358 425 493 554 725 850 895 986 1385 1450 1790 2465 2770 3043 4475 4709 4930 5191 6086 6925 8033 8950 9418 10382 12325 13850 15215 16066 23545 24650 25955 30430 40165 47090 49583 51910 76075 80330 88247 99166 117725 129775 136561 152150 176494 200825 235450 247915 259550 273122 401650 441235 495830 682805 842911 882470 1239575 1365610 1437907 1685822 2206175 2479150 2875814 3414025 4214555 4412350 6828050 7189535 8429110 14379070 21072775 24444419 35947675 42145550 48888838 71895350 122222095 244444190 611110475 1222220950