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921742701711 = 3131071971121231
BaseRepresentation
bin11010110100111000010…
…01010111010010001111
310021010011211111202210220
431122130021113102033
5110100212112423321
61543235345002423
7123410433456306
oct15323411272217
93233154452726
10921742701711
113259aa7a8467
1212a781923413
1368bc6211790
1432880d0b43d
1518e9b2839c6
hexd69c25748f

921742701711 has 32 divisors (see below), whose sum is σ = 1342679804928. Its totient is φ = 559072187520.

The previous prime is 921742701689. The next prime is 921742701713. The reversal of 921742701711 is 117107247129.

It is not a de Polignac number, because 921742701711 - 29 = 921742701199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921742701713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261466 + ... + 1382696.

It is an arithmetic number, because the mean of its divisors is an integer number (41958743904).

Almost surely, 2921742701711 is an apocalyptic number.

921742701711 is a deficient number, since it is larger than the sum of its proper divisors (420937103217).

921742701711 is a wasteful number, since it uses less digits than its factorization.

921742701711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121551.

The product of its (nonzero) digits is 49392, while the sum is 42.

The spelling of 921742701711 in words is "nine hundred twenty-one billion, seven hundred forty-two million, seven hundred one thousand, seven hundred eleven".

Divisors: 1 3 13 39 107 197 321 591 1391 2561 4173 7683 21079 63237 274027 822081 1121231 3363693 14576003 43728009 119971717 220882507 359915151 662647521 1559632321 2871472591 4678896963 8614417773 23634428249 70903284747 307247567237 921742701711