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97688848880 = 2457712456963
BaseRepresentation
bin101101011111010110…
…1011000100111110000
3100100011002210200221002
41122332231120213300
53100031321131010
6112513323021132
710025551341410
oct1327655304760
9310132720832
1097688848880
113847a899057
1216b2396a7a8
13929aa61abc
144a2a12c640
15281b3b41a5
hex16beb589f0

97688848880 has 80 divisors (see below), whose sum is σ = 263229295104. Its totient is φ = 33021569280.

The previous prime is 97688848837. The next prime is 97688848949. The reversal of 97688848880 is 8884888679.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×976888488802 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97688848798 and 97688848807.

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, 1188722 + ... + 1268241.

Almost surely, 297688848880 is an apocalyptic number.

It is an amenable number.

97688848880 is an abundant number, since it is smaller than the sum of its proper divisors (165540446224).

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

97688848880 is a wasteful number, since it uses less digits than its factorization.

97688848880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457054 (or 2457048 counting only the distinct ones).

The product of its (nonzero) digits is 396361728, while the sum is 74.

The spelling of 97688848880 in words is "ninety-seven billion, six hundred eighty-eight million, eight hundred forty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 71 80 112 140 142 280 284 355 497 560 568 710 994 1136 1420 1988 2485 2840 3976 4970 5680 7952 9940 19880 39760 2456963 4913926 9827852 12284815 17198741 19655704 24569630 34397482 39311408 49139260 68794964 85993705 98278520 137589928 171987410 174444373 196557040 275179856 343974820 348888746 687949640 697777492 872221865 1221110611 1375899280 1395554984 1744443730 2442221222 2791109968 3488887460 4884442444 6105553055 6977774920 9768884888 12211106110 13955549840 19537769776 24422212220 48844424440 97688848880