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244689382990 = 251389151140057
BaseRepresentation
bin1110001111100010011…
…1111010111001001110
3212101120211020120010101
43203320213322321032
513002110440223430
6304224142401314
723451426303223
oct3437047727116
9771524216111
10244689382990
1194854861078
123b509b9023a
131a0c6a85b70
14bbb33b594a
1565719a7dca
hex38f89fae4e

244689382990 has 64 divisors (see below), whose sum is σ = 482830346880. Its totient is φ = 88739481600.

The previous prime is 244689382957. The next prime is 244689382997. The reversal of 244689382990 is 99283986442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244689382997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1677042 + ... + 1817098.

It is an arithmetic number, because the mean of its divisors is an integer number (7544224170).

Almost surely, 2244689382990 is an apocalyptic number.

244689382990 is a deficient number, since it is larger than the sum of its proper divisors (238140963890).

244689382990 is a wasteful number, since it uses less digits than its factorization.

244689382990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140317.

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 244689382990 in words is "two hundred forty-four billion, six hundred eighty-nine million, three hundred eighty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 65 89 130 151 178 302 445 755 890 1157 1510 1963 2314 3926 5785 9815 11570 13439 19630 26878 67195 134390 140057 174707 280114 349414 700285 873535 1400570 1747070 1820741 3641482 9103705 12465073 18207410 21148607 24930146 42297214 62325365 105743035 124650730 162045949 211486070 274931891 324091898 549863782 810229745 1374659455 1620459490 1882226023 2749318910 3764452046 9411130115 18822260230 24468938299 48937876598 122344691495 244689382990