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97438380 = 223513532357
BaseRepresentation
bin1011100111011…
…00101010101100
320210100101022220
411303230222230
5144421012010
613400235340
72262132624
oct563545254
9223311286
1097438380
1150001996
122876bb50
1317257860
14cd25884
15884a970
hex5cecaac

97438380 has 96 divisors (see below), whose sum is σ = 299484864. Its totient is φ = 23522304.

The previous prime is 97438361. The next prime is 97438409. The reversal of 97438380 is 8383479.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40162 + ... + 42518.

It is an arithmetic number, because the mean of its divisors is an integer number (3119634).

Almost surely, 297438380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97438380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149742432).

97438380 is an abundant number, since it is smaller than the sum of its proper divisors (202046484).

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

97438380 is a wasteful number, since it uses less digits than its factorization.

97438380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 97438380 is about 9871.0880859204. The cubic root of 97438380 is about 460.1612226305.

The spelling of 97438380 in words is "ninety-seven million, four hundred thirty-eight thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 53 60 65 78 106 130 156 159 195 212 260 265 318 390 530 636 689 780 795 1060 1378 1590 2067 2357 2756 3180 3445 4134 4714 6890 7071 8268 9428 10335 11785 13780 14142 20670 23570 28284 30641 35355 41340 47140 61282 70710 91923 122564 124921 141420 153205 183846 249842 306410 367692 374763 459615 499684 612820 624605 749526 919230 1249210 1499052 1623973 1838460 1873815 2498420 3247946 3747630 4871919 6495892 7495260 8119865 9743838 16239730 19487676 24359595 32479460 48719190 97438380