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437400670668 = 2231314471937699
BaseRepresentation
bin1100101110101110001…
…11001001000111001100
31112211000012112021222120
412113113013021013030
524131244032430133
6532534502212540
743413124233123
oct6272707110714
91484005467876
10437400670668
11159556303885
1270930724150
1332329023cc0
1417255464aba
15b5a00d3ab3
hex65d71c91cc

437400670668 has 48 divisors (see below), whose sum is σ = 1099869523200. Its totient is φ = 134491742784.

The previous prime is 437400670667. The next prime is 437400670687. The reversal of 437400670668 is 866076004734.

It is a self number, because there is not a number n which added to its sum of digits gives 437400670668.

It is not an unprimeable number, because it can be changed into a prime (437400670667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743118 + ... + 1194581.

It is an arithmetic number, because the mean of its divisors is an integer number (22913948400).

Almost surely, 2437400670668 is an apocalyptic number.

It is an amenable number.

437400670668 is an abundant number, since it is smaller than the sum of its proper divisors (662468852532).

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

437400670668 is a wasteful number, since it uses less digits than its factorization.

437400670668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939166 (or 1939164 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 437400670668 in words is "four hundred thirty-seven billion, four hundred million, six hundred seventy thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1447 2894 4341 5788 8682 17364 18811 37622 56433 75244 112866 225732 1937699 3875398 5813097 7750796 11626194 23252388 25190087 50380174 75570261 100760348 151140522 302281044 2803850453 5607700906 8411551359 11215401812 16823102718 33646205436 36450055889 72900111778 109350167667 145800223556 218700335334 437400670668