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1220207088 = 24389285629
BaseRepresentation
bin100100010111010…
…1110000111110000
310011001000221110010
41020232232013300
54444333111323
6321025134520
742144406032
oct11056560760
93131027403
101220207088
11576858711
122a078a440
13165a4ac39
14b80adc52
15721ccc93
hex48bae1f0

1220207088 has 40 divisors (see below), whose sum is σ = 3187630800. Its totient is φ = 402164224.

The previous prime is 1220207069. The next prime is 1220207099. The reversal of 1220207088 is 8807020221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138543 + ... + 147086.

It is an arithmetic number, because the mean of its divisors is an integer number (79690770).

Almost surely, 21220207088 is an apocalyptic number.

It is an amenable number.

1220207088 is an abundant number, since it is smaller than the sum of its proper divisors (1967423712).

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

1220207088 is a wasteful number, since it uses less digits than its factorization.

1220207088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285729 (or 285723 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1220207088 is about 34931.4627234532. The cubic root of 1220207088 is about 1068.5901856586.

The spelling of 1220207088 in words is "one billion, two hundred twenty million, two hundred seven thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 89 178 267 356 534 712 1068 1424 2136 4272 285629 571258 856887 1142516 1713774 2285032 3427548 4570064 6855096 13710192 25420981 50841962 76262943 101683924 152525886 203367848 305051772 406735696 610103544 1220207088