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2078332690 = 257311078951
BaseRepresentation
bin111101111100000…
…1101011100010010
312100211202020110211
41323320031130102
513224023121230
6542121514334
7102334351660
oct17370153422
95324666424
102078332690
1197718a125
124a00429aa
13271772875
1415a049c30
15c26d742a
hex7be0d712

2078332690 has 64 divisors (see below), whose sum is σ = 4455088128. Its totient is φ = 683064000.

The previous prime is 2078332687. The next prime is 2078332691. The reversal of 2078332690 is 962338702.

It is a super-2 number, since 2×20783326902 = 8638933540645272200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2078332691) by changing a digit.

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, 227715 + ... + 236665.

It is an arithmetic number, because the mean of its divisors is an integer number (69610752).

Almost surely, 22078332690 is an apocalyptic number.

2078332690 is an abundant number, since it is smaller than the sum of its proper divisors (2376755438).

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

2078332690 is a wasteful number, since it uses less digits than its factorization.

2078332690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9103.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 2078332690 is about 45588.7342443284. The cubic root of 2078332690 is about 1276.1596912490.

The spelling of 2078332690 in words is "two billion, seventy-eight million, three hundred thirty-two thousand, six hundred ninety".

Divisors: 1 2 5 7 10 14 31 35 62 70 107 155 214 217 310 434 535 749 1070 1085 1498 2170 3317 3745 6634 7490 8951 16585 17902 23219 33170 44755 46438 62657 89510 116095 125314 232190 277481 313285 554962 626570 957757 1387405 1915514 1942367 2774810 3884734 4788785 6704299 9577570 9711835 13408598 19423670 29690467 33521495 59380934 67042990 148452335 207833269 296904670 415666538 1039166345 2078332690