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97000000 = 265697
BaseRepresentation
bin1011100100000…
…01101001000000
320202112002222121
411302001221000
5144313000000
613343014024
72255325556
oct562015100
9222462877
1097000000
114a832599
122859a314
1317133166
14cc4dbd6
1587b0b1a
hex5c81a40

97000000 has 98 divisors (see below), whose sum is σ = 243082826. Its totient is φ = 38400000.

The previous prime is 96999979. The next prime is 97000003. The reversal of 97000000 is 79.

Adding to 97000000 its reverse (79), we get a palindrome (97000079).

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 96668224 + 331776 = 9832^2 + 576^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (97000003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 999952 + ... + 1000048.

It is an arithmetic number, because the mean of its divisors is an integer number (2480437).

Almost surely, 297000000 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 97000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121541413).

97000000 is an abundant number, since it is smaller than the sum of its proper divisors (146082826).

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

97000000 is an frugal number, since it uses more digits than its factorization.

97000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 97000000 is about 9848.8578017961. The cubic root of 97000000 is about 459.4700892207.

The spelling of 97000000 in words is "ninety-seven million", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 97 100 125 160 194 200 250 320 388 400 485 500 625 776 800 970 1000 1250 1552 1600 1940 2000 2425 2500 3104 3125 3880 4000 4850 5000 6208 6250 7760 8000 9700 10000 12125 12500 15520 15625 19400 20000 24250 25000 31040 31250 38800 40000 48500 50000 60625 62500 77600 97000 100000 121250 125000 155200 194000 200000 242500 250000 303125 388000 485000 500000 606250 776000 970000 1000000 1212500 1515625 1940000 2425000 3031250 3880000 4850000 6062500 9700000 12125000 19400000 24250000 48500000 97000000