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219696969692 = 221371572553547
BaseRepresentation
bin1100110010011011110…
…1011011011111011100
3210000002001121102022102
43030212331123133130
512044414411012232
6244532152304232
721605203300424
oct3144675333734
9700061542272
10219696969692
118519a237052
12366b40a2078
1317942ca7925
14a8c2045484
155aac7d3662
hex3326f5b7dc

219696969692 has 24 divisors (see below), whose sum is σ = 389742924144. Its totient is φ = 108352063872.

The previous prime is 219696969691. The next prime is 219696969697. The reversal of 219696969692 is 296969696912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219696969691) 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, 1190738 + ... + 1362809.

It is an arithmetic number, because the mean of its divisors is an integer number (16239288506).

Almost surely, 2219696969692 is an apocalyptic number.

It is an amenable number.

219696969692 is a deficient number, since it is larger than the sum of its proper divisors (170045954452).

219696969692 is a wasteful number, since it uses less digits than its factorization.

219696969692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553845 (or 2553843 counting only the distinct ones).

The product of its digits is 306110016, while the sum is 74.

The spelling of 219696969692 in words is "two hundred nineteen billion, six hundred ninety-six million, nine hundred sixty-nine thousand, six hundred ninety-two".

Divisors: 1 2 4 137 157 274 314 548 628 21509 43018 86036 2553547 5107094 10214188 349835939 400906879 699671878 801813758 1399343756 1603627516 54924242423 109848484846 219696969692