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2145497410 = 257179718587
BaseRepresentation
bin111111111100001…
…1011000101000010
312112112010120011001
41333320123011002
513343221404120
6552521242214
7104111266330
oct17770330502
95475116131
102145497410
11a01093a61
124ba63336a
1328265a9c4
14164d30b50
15c8552e0a
hex7fe1b142

2145497410 has 64 divisors (see below), whose sum is σ = 4721649408. Its totient is φ = 685154304.

The previous prime is 2145497381. The next prime is 2145497441. The reversal of 2145497410 is 147945412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145497410.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106137 + ... + 124723.

It is an arithmetic number, because the mean of its divisors is an integer number (73775772).

Almost surely, 22145497410 is an apocalyptic number.

2145497410 is an abundant number, since it is smaller than the sum of its proper divisors (2576151998).

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

2145497410 is a wasteful number, since it uses less digits than its factorization.

2145497410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18715.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2145497410 is about 46319.5143541035. The cubic root of 2145497410 is about 1289.7612702472.

The spelling of 2145497410 in words is "two billion, one hundred forty-five million, four hundred ninety-seven thousand, four hundred ten".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 97 119 170 194 238 485 595 679 970 1190 1358 1649 3298 3395 6790 8245 11543 16490 18587 23086 37174 57715 92935 115430 130109 185870 260218 315979 631958 650545 1301090 1579895 1802939 2211853 3159790 3605878 4423706 9014695 11059265 12620573 18029390 22118530 25241146 30649963 61299926 63102865 126205730 153249815 214549741 306499630 429099482 1072748705 2145497410