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197968480 = 25531167239
BaseRepresentation
bin10111100110011…
…00001001100000
3111210111211200221
423303030021200
5401134442410
631351052424
74622463403
oct1363141140
9453454627
10197968480
11a1825716
1256371114
1332025718
141c413d3a
15125a74da
hexbccc260

197968480 has 96 divisors (see below), whose sum is σ = 487710720. Its totient is φ = 75855360.

The previous prime is 197968457. The next prime is 197968483. The reversal of 197968480 is 84869791.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197968483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828201 + ... + 828439.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2197968480 is an apocalyptic number.

197968480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197968480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243855360).

197968480 is an abundant number, since it is smaller than the sum of its proper divisors (289742240).

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

197968480 is a wasteful number, since it uses less digits than its factorization.

197968480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 197968480 is about 14070.1272204625. The cubic root of 197968480 is about 582.8167384709.

The spelling of 197968480 in words is "one hundred ninety-seven million, nine hundred sixty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 31 32 40 62 80 124 155 160 167 239 248 310 334 478 496 620 668 835 956 992 1195 1240 1336 1670 1912 2390 2480 2672 3340 3824 4780 4960 5177 5344 6680 7409 7648 9560 10354 13360 14818 19120 20708 25885 26720 29636 37045 38240 39913 41416 51770 59272 74090 79826 82832 103540 118544 148180 159652 165664 199565 207080 237088 296360 319304 399130 414160 592720 638608 798260 828320 1185440 1237303 1277216 1596520 2474606 3193040 4949212 6186515 6386080 9898424 12373030 19796848 24746060 39593696 49492120 98984240 197968480