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131903208198151 = 13374211619402329
BaseRepresentation
bin11101111111011100011011…
…110111101001000000000111
3122022000211020101000010222221
4131333130123313221000013
5114242100232244320101
61144311255230433211
736532456314364435
oct3577343367510007
9568024211003887
10131903208198151
1139034922355745
1212963885662807
13587a55ab89010
142480213b0bd55
15103b189d08aa1
hex77f71bde9007

131903208198151 has 32 divisors (see below), whose sum is σ = 146326004798400. Its totient is φ = 118111398773760.

The previous prime is 131903208198149. The next prime is 131903208198211. The reversal of 131903208198151 is 151891802309131.

It is a cyclic number.

It is not a de Polignac number, because 131903208198151 - 21 = 131903208198149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131903208198101) 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, 327647955 + ... + 328050283.

It is an arithmetic number, because the mean of its divisors is an integer number (4572687649950).

Almost surely, 2131903208198151 is an apocalyptic number.

131903208198151 is a deficient number, since it is larger than the sum of its proper divisors (14422796600249).

131903208198151 is a wasteful number, since it uses less digits than its factorization.

131903208198151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404419.

The product of its (nonzero) digits is 466560, while the sum is 52.

The spelling of 131903208198151 in words is "one hundred thirty-one trillion, nine hundred three billion, two hundred eight million, one hundred ninety-eight thousand, one hundred fifty-one".

Divisors: 1 13 37 421 481 1619 5473 15577 21047 59903 202501 402329 681599 778739 5230277 8860787 14886173 25219163 169380509 193520249 327849119 651370651 2201946617 6267078833 8467818463 24100714087 81472024829 274227044071 313309283131 3564951572923 10146400630627 131903208198151